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Have you ever faced a skin condition where it feels very tight after cleansing, fine flaking appears on the cheeks and around the mouth during seasonal changes, and the texture feels rough for several days after being irritated? If you have these concerns, "moisturizing care,""skin barrier strengthening," and "soothing sensitive skin" naturally come to mind — and the ingredient that repeatedly appears in beauty magazines and cosmetic formulations in this area is Panthenol. Panthenol is a precursor of vitamin B5 (provitamin B5), and when applied to the skin, it is reported to convert into pantothenic acid to support stratum corneum moisturizing and barrier recovery. [1][2]

While Panthenol has accumulated more than 70 years of use experience in the medical field, how it works in cosmetics may differ from its medical use. For those who often experience dryness and tightness, those whose skin is slow to recover after external stimuli, and those whose skin tends to react sensitively, we introduce Panthenol from the perspective of a skincare ingredient.

Panthenol at a Glance

CategoryKey SummaryCheck Point
Ingredient Name
Panthenol
Also labeled as Dexpanthenol, D-Panthenol, Provitamin B5 [3]
Ingredient Classification
Vitamin B5 precursor, moisturizing/conditioning ingredient
The alcohol form of pantothenic acid; converts into pantothenic acid via enzymatic oxidation after skin application [1][3]
Source
Synthetic raw material (D-form/DL-form panthenol)
In cosmetics, the active D-panthenol (dexpanthenol) is mainly used [3]
Expected Skin Benefits
Support for stratum corneum hydration, relief of tightness, smoother texture, condition stabilization after irritation
Gradual, cumulative rather than immediate change through continued use
Functions in Research
Increase in stratum corneum moisture content, reduction in transepidermal water loss (TEWL), support for barrier recovery, soothing after irritation [2][4][5]
Based on medical clinical results; cosmetic results vary by individual
Suitable Skin Types
Dry and tight skin, skin whose condition fluctuates during seasonal changes, skin sensitive to irritation, skin slow to recover after external stimuli
Consultation with a specialist is recommended if you have a specific skin condition
Precautions
Contact allergy is reported very rarely, and co-formulated ingredients can be an irritation variable [7][9]
Check the full ingredient list; a patch test is recommended for first use

What is Panthenol?

Panthenol is the alcohol precursor of vitamin B5 (pantothenic acid), and its INCI (International Nomenclature of Cosmetic Ingredients) name is "Panthenol." In cosmetic ingredient databases, it is classified with functions such as skin conditioning, humectant (moisturizing), and hair conditioning, and the active stereoisomer D-panthenol (dexpanthenol) is mainly used in cosmetics and non-prescription skincare products. [3][9] Panthenol applied to the skin surface is converted into pantothenic acid by oxidative enzymes within the keratinocytes of the stratum corneum, and is then used as a component of coenzyme A (CoA) via 4'-phosphopantetheine. Because CoA acts as a key cofactor in the synthesis pathways of stratum corneum lipids such as fatty acids and ceramide, panthenol is reported to be involved not only in surface moisturizing but also as a barrier-supporting ingredient. [1][2]

Panthenol began to be used in earnest in cosmetics and topical pharmaceuticals after the development of dexpanthenol in 1944, and it is an ingredient with more than 70 years of use experience and accumulated clinical data. [4] In the 1960s–70s, its potential for topical application in various skin conditions was validated through clinical evaluation, and after the 1980s it became established in the cosmetics field for its activity in improving stratum corneum hydration and softness. [4] In the 2000s, changes in stratum corneum moisture and transepidermal water loss (TEWL) were quantitatively measured with standardized in vivo measurement techniques [5], and since the 2010s, clinical research has expanded to occlusion-patch irritation models, post-procedure recovery models, and sensitive-skin models. [6][8] In 2022, the U.S. CIR (Cosmetic Ingredient Review) expert panel re-evaluated the safety of the cosmetic use of panthenol, pantothenic acid, and their derivatives and announced the conclusion that they are "safe at current use concentrations and methods." [9]

Differences Between Panthenol and Similar Ingredients

Panthenol is frequently cited as an ingredient that combines moisturizing, soothing, and barrier-support activity, and it is compared with other ingredients in the moisturizing category. These ingredients differ in molecular size, formulation behavior, and their roles in moisturization.

Ingredient NameCharacteristicsMolecular Weight / Form
Panthenol (Provitamin B5)
Hygroscopic moisturizing + support for barrier lipid synthesis through conversion to pantothenic acid, support for soothing after irritation [1][2][5]
About 205 g/mol, viscous liquid [3]
Glycerin
A representative hygroscopic moisturizing ingredient that forms a moisture reservoir within the stratum corneum [17][18][19]
About 92 g/mol, viscous liquid [17][18][19]
Hyaluronic Acid
Holds several hundred times its own weight in moisture; supports a surface hydration and volume impression [17][18][19]
Tens of thousands to millions of Da, various molecular weights [17][18][19]
Allantoin
Texture-refining and soothing support activity, conditioning support [9]
About 158 g/mol, crystalline powder [9]

Beyond the simple concept of hygroscopic moisturizing, panthenol is evaluated as an ingredient that supports both surface hydration and barrier recovery, in that it is converted into pantothenic acid within the stratum corneum and acts as a cofactor in the barrier lipid synthesis pathway. [1][2]

Benefits of Panthenol

When discussing Panthenol in cosmetics, the key points are "stratum corneum moisturizing and barrier recovery support, and texture stabilization after irritation." Based on the research accumulated in the medical field, the benefits you can expect from cosmetics are summarized as follows.

1. Stratum Corneum Moisture Support

In dry environments, with frequent cleansing, and after masks and friction, moisture in the stratum corneum escapes quickly, and tightness and fine flaking become noticeable. Panthenol is a hygroscopic molecule, and its moisturizing activity of drawing in moisture from the surrounding environment and keeping it in the stratum corneum has been reported. [1][5] In an in vivo clinical study using a 5% dexpanthenol topical product for 7 days, a significant increase in stratum corneum moisture content and a reduction in transepidermal water loss (TEWL) were reported. [5] In cosmetic formulations, this hygroscopic activity is experienced not as immediate surface suppleness but as a gradual support for the stratum corneum's moisture-storage capacity through consistent use.

2. Support for Barrier Recovery and Texture Refinement

When the stratum corneum barrier is destabilized, external stimuli are accelerated, leading to a vicious cycle in which the texture feels rough. After being applied to the skin, panthenol is converted into pantothenic acid and, as a component of coenzyme A, is reported to play a supporting role in the synthesis pathways of barrier lipids such as fatty acids and ceramide. [1][2] In an in vivo model in which irritation was induced with a surfactant (SLS, sodium lauryl sulphate), the area to which 5% dexpanthenol cream was applied showed improvement in stratum corneum moisture and an irritation-recovery pattern compared with the untreated control group [5], and in a 28-day clinical study on dry skin, TEWL decreased by about 11% and a pattern of improved barrier-function indices was measured. [6] In cosmetics, it is treated as one axis that supports the texture refinement of skin whose barrier condition is prone to fluctuation.

3. Support for Condition Stabilization After Irritation

When external stimuli such as friction, UV rays, cold and dry wind, and cleansing that causes strong tightness to accumulate, mild redness and stinging tend to appear. Panthenol has been reported to have antioxidant/soothing support activity along with surface-condition stabilization activity [4][8], so it is frequently used in the process of re-refining the condition of destabilized skin. In a post-procedure surface-recovery model clinical study, a pattern was observed in which surface recovery was faster, and flushing indices gradually decreased in the area using a topical product containing 5% panthenol compared with the control group. [8] In the cosmetics field, it is appropriate to experience it as an impression of texture condition being refined through cumulative care immediately after irritation, rather than as immediate soothing.

4. Everyday Condition Care for Sensitive and Dry Skin

For skin that tends to react sensitively and skin where frequent dryness and itchiness are of concern, panthenol is frequently used as a key moisturizing/soothing support ingredient. In a clinical study using a cream containing panthenol, prebiotics, and probiotic extract on 60 people with sensitive skin, condition indices such as stratum corneum moisture, erythema index, and skin redness (a* value) were reported to have significantly improved. [7] In a sensitive-skin observational study using a moisturizing formulation combining Centella asiatica extract, Ceramide NP, and panthenol, a pattern was also observed in which moisturizing indices and irritation signals were gradually refined. [10] In the cosmetics field, rather than relying on a single active, panthenol is used in a form that supports everyday condition care in combination with soothing and barrier ingredients.

5. Combination with Other Ingredients

Panthenol tends to blend gently with various active ingredients. When used together with hygroscopic moisturizing ingredients such as glycerin and hyaluronic acid, surface hydration and stratum corneum moisture storage are supported in multiple layers [17][18][19], and when used with barrier lipid ingredients such as ceramide and cholesterol, the barrier support can be more comprehensively layered. [10] When combined with soothing support ingredients such as madecassoside, Cica, and allantoin, it blends naturally in terms of condition stabilization after irritation [8][10], and in facial clinical studies formulated with the vitamin B3-family niacinamide and vitamin E, a pattern was reported in which texture, tone, and irritation indices were refined together. [11] However, if too many actives in the same category overlap, irritation variables can increase, so it is helpful to also examine the full ingredient composition.

Amorepacific's Perspective on Panthenol

Skin changes every day amid different environmental stimuli and conditions. Rather than presenting a particular ingredient as the "right answer," Amorepacific has researched how various active ingredients work in harmony within the larger framework of moisturizing, barrier, and soothing. For an ingredient like Panthenol, which has accumulated over 70 years of use experience, it is natural to take the view that its perceived effect is determined not by a single concentration but within the combination with the moisturizing, barrier, and soothing ingredients formulated alongside it.

Scientific Understanding of Panthenol Mechanism of Action

The main pathways of the panthenol's action mentioned in the research literature can be summarized as follows.

Stratum corneum moisture support pathway through hygroscopic moisturizing

Panthenol is a hygroscopic molecule with multiple hydroxyl groups (-OH) in its molecule, and its moisturizing activity of drawing in environmental moisture and keeping it within the stratum corneum has been reported. [1][3] In an in vivo clinical study, using a 5% dexpanthenol topical product for 7 days resulted in a simultaneous increase in stratum corneum moisture content and reduction in transepidermal water loss (TEWL), interpreted as surface hygroscopy and barrier support working together. [5] In the cosmetics field, this mechanism is cited as the basis for everyday moisturizing care for skin that is often dry and tight.

Barrier lipid synthesis support pathway through pantothenic acid conversion

Panthenol applied to the skin is converted into pantothenic acid by oxidative enzymes within keratinocytes, and is then used as a component of coenzyme A (CoA) via 4'-phosphopantetheine. [1][2] Because CoA is a key cofactor in the synthesis pathways of stratum corneum lipids such as fatty acids and ceramide, panthenol is reported to be involved in a supporting role in barrier lipid reconstruction, beyond simple hygroscopic moisturizing. [1][2] In the cosmetics field, this pathway serves as the basis for the interpretation that "panthenol supports not only the surface but also the texture and barrier condition together."

Amorepacific's Panthenol Research

Amorepacific has treated moisturizing and barrier as core themes of cosmetic research. In the case of LANEIGE, it has steadily developed based on the research accumulated in the moisturizing care category. Its in-house-developed Blue Hyaluronic Acid is formulated together with barrier-strengthening ingredients such as beta-glucan, ceramide, and panthenol to help improve a destabilized moisture barrier. [12] The derma-cosmetic brand AESTURA has accumulated about 470 fundamental studies on skin concerns and about 240 ingredient and base-technology patents, and continues research in the barrier and soothing care areas through its in-house moisturizing delivery technology DermaON®, which encapsulates skin lipids (ceramide, cholesterol, fatty acids) into a lamellar structure, and Cica BPM-based soothing formulations that combine beta-glucan, phytosterols, and madecassoside. [13] For ingredients like Panthenol, whose moisturizing, barrier, and soothing activities overlap, ingredient combination is treated as more important than the concentration of a single ingredient. This principle underlies Amorepacific's comprehensive formulation design approach.

Realistic Application in Cosmetics

When applying this scientific background to cosmetics, several practical considerations are necessary.

Related research was conducted mainly in topical pharmaceutical clinical studies or in relatively high-concentration application studies, and cosmetics work primarily at the skin's surface and the stratum corneum. [4][5] In addition, because the perceived effect of panthenol varies greatly depending on the moisturizing, barrier, and soothing ingredients formulated alongside it, as well as the formulation stabilization technology and sensory design, the combination among active ingredients and the irritation-mitigation formulation design should be examined together, rather than the simple criterion that "higher concentration is better." Based on many years of research on moisturizing, barrier, and soothing, Amorepacific approaches condition care in a comprehensive condition care approach through balance-centered formulation design rather than relying on a single ingredient. [12][13]

Amorepacific's Research Direction

Amorepacific is researching the potential of moisturizing, barrier, and soothing from multiple angles. While examining stratum corneum moisture behavior, the lamellar structure of barrier lipids, and interactions among active ingredients, it comprehensively examines the stabilization and delivery technology of active ingredients and formulation stability based on a deep understanding of skin biology, and approaches from the perspective of sustainable beauty that considers long-term skin health.

Products utilizing moisturizing and barrier care technologies such as panthenol can be found in Amorepacific brands including LANEIGE, INNISFREE, Mamonde, and AESTURA. [12][13] You can learn more about Amorepacific's research and development philosophy and technology trends at the link below.

LANEIGE Panthenol for Skin: What It Is, Benefits, and How It Works benefits LANEIGE Panthenol for Skin: What It Is, Benefits, and How It Works benefits
INNISFREE Panthenol for Skin: What It Is, Benefits, and How It Works benefits INNISFREE Panthenol for Skin: What It Is, Benefits, and How It Works benefits
Mamonde Panthenol for Skin: What It Is, Benefits, and How It Works benefits Mamonde Panthenol for Skin: What It Is, Benefits, and How It Works benefits
Explore Amorepacific Research & Innovation

Panthenol Fact Check

We examine information about Panthenol that is frequently misunderstood or exaggerated to gain a more balanced understanding of its characteristics as a cosmetic ingredient.

QuestionFact Check
Does Panthenol guarantee skin regeneration?
Clinical data on moisturizing, barrier, and soothing support have accumulated, but it is difficult to "guarantee" regeneration through a single cosmetic step. The perceived effect is gradual and varies by individual. [4][5]
Can using Panthenol cosmetics produce the effects of a procedure?
Panthenol works at the surface and the stratum corneum, and it differs from medical procedures in depth of action and mechanism. It is difficult to expect results equivalent to a procedure from cosmetics. [4][8]
Is Panthenol suitable for all skin types?
It has been used across various skin types within the use concentrations set by the CIR and EU cosmetics regulation, and irritation/sensitivity reactions are reported very rarely. However, sensitive skin should examine the entire formulation together. [3][9]
Do I see immediate effects when I apply Panthenol?
In clinical studies, it is reported as a gradual change on a 7- to 28-day basis. Surface hydration is experienced relatively quickly, but changes in texture and barrier tend to be felt cumulatively. [5][6]
Is a higher concentration of Panthenol always better?
In CIR evaluations, safety is reviewed within the general cosmetic use concentration range (generally 1–5%). The combination with the soothing and barrier ingredients formulated alongside it influences the perceived effect more strongly. [9]
Is Panthenol extracted from only one source?
Panthenol is a vitamin B5 precursor obtained through synthesis rather than extracted from plants, and in cosmetics, the active D-panthenol (dexpanthenol) is mainly used. [3][9]

How to Experience Panthenol Benefits

  • Realistic Changes to Expect

When using panthenol-containing cosmetics, you can expect an impression of tightness after cleansing gradually decreasing, a gradual reduction in seasonal change and dry environments, a gradual improvement in skin texture destabilized by friction or irritation, support for condition stabilization in areas that used to react sensitively, and overall improvement in skin condition as a foundation for moisturizing and barrier care. These changes appear gradually and cumulatively rather than dramatically, and consistent use is important.

  • Changes That Are Difficult to Expect

It is difficult to expect complete removal of deep pigmentation, fundamental restoration of elasticity down to the dermis, complete removal of deep scars, or condition recovery equivalent to a medical procedure from cosmetics alone. If condition fluctuations are repetitive and severe, consulting a specialist is recommended. If more active moisturizing/barrier care is needed, you may consider a formulation in which ceramide, cholesterol, and fatty acids are combined in a lamellar structure or a combination with soothing actives.

Safety of Panthenol

Panthenol is a cosmetic ingredient with more than 70 years of documented topical use, and it is used safely within defined use conditions. However, as with all cosmetic ingredients, individual reactions may vary, so please refer to the following.

General Safety

On Cosmetics Info, the cosmetic ingredient information site operated by the U.S. PCPC (Personal Care Products Council), panthenol is described as an ingredient used in cosmetics for skin conditioning (emollient) and hair conditioning functions, and it is stated that the CIR (Cosmetic Ingredient Review) expert panel reviewed scientific safety data on panthenol, pantothenic acid, and their derivatives and announced the conclusion that they are "safe at current use concentrations and methods." [9] The CIR panel also summarizes data showing that no significant irritation or sensitization was observed even with 100% panthenol, an evaluation that panthenol is not a photo-irritant or photosensitizing ingredient based on UV absorption data, and the fact that the U.S. FDA has included panthenol (D-pantothenyl alcohol) on its GRAS (Generally Recognized As Safe) nutrient and dietary supplement list. [9] On the European cosmetic ingredient database COSMILE Europe, panthenol is also described as an ingredient with "very good skin tolerance," and it is listed as a moisturizing/conditioning raw material used freely under the general provisions of the EU cosmetics regulation. [3]

When Caution is Needed

Panthenol itself is generally classified as a stable ingredient, but there have been very rare reported cases of contact allergic reactions, so if you have a history of allergies, it is helpful to also examine the co-formulated ingredients. [9] In addition, because co-formulated fragrances, surfactants, alcohol, essential oils, and similar ingredients can be an irritant variable, it is recommended to apply a small amount to a narrow area at first use and observe the reaction for about 24 hours. [3] If your existing skin condition is not good or you have a history of irritation, consultation with a specialist is recommended.

Frequently Asked Questions (FAQ)

What exactly is Panthenol?

Panthenol is the alcohol precursor of vitamin B5 (pantothenic acid), and when applied to the skin, it is converted into pantothenic acid within keratinocytes and used as a component of coenzyme A (CoA). As a hygroscopic molecule, it is reported to be involved together in stratum corneum moisture support and barrier lipid synthesis support. [1][2]

What should sensitive skin keep in mind when using Panthenol products?

Panthenol itself is an ingredient for which irritation/contact allergy is reported very rarely, but co-formulated fragrances, alcohol, and surfactants can be an irritation variable. [3][9] For sensitive skin, it is advisable to examine the full ingredient list and to use it in earnest after a patch test at first use.

What ingredients are good to use together with Panthenol?

When used together with ceramide, cholesterol, and fatty acids (barrier lipid reinforcement), glycerin and hyaluronic acid (moisturizing reinforcement), madecassoside and Cica (soothing support), and niacinamide (texture/tone refinement), it tends to blend gently in terms of texture and condition. [10][11][17][18][19]

Can I use Panthenol and retinol together?

They can be used together, and panthenol is frequently used to support the condition of skin that has become temporarily sensitive in the early stages of retinol use. [14] However, in the early stages of retinol use, it is advisable to apply it in stages while observing the skin condition, and if irritation accumulates, it can be helpful to separate the timing of use.

Can I use Panthenol together with exfoliating ingredients (AHA/BHA)?

They can be used together, and panthenol's moisturizing/soothing support activity is frequently used in a form that supports the condition after using exfoliating ingredients. However, because the skin barrier may become temporarily sensitive after exfoliation [15], if you feel irritation, it is helpful to separate the timing of use or to use a formulation that also contains soothing and barrier ingredients.

Can I use Panthenol products right after a procedure?

It depends on the type and intensity of the procedure and the individual skin condition. There is clinical data reporting that a topical product containing 5% panthenol may help support surface recovery and irritation-index refinement after non-peel and peel procedures [8], but for the stage immediately after a procedure and the point at which use is possible, following the guidance of the medical professional who performed the procedure takes top priority.

Do pores shrink when I use Panthenol cosmetics?

Pore size is determined by a combination of factors such as genetics, the amount of sebum secretion, and skin elasticity. [16] You can expect an impression of pores looking "less prominent" as panthenol refines the surface texture through its moisturizing/barrier support activity, but it is difficult to expect permanent pore reduction.

When can I expect to feel the effects of Panthenol?

Surface hydration and relief of tightness can be experienced relatively quickly, and texture and barrier indices are reported in clinical studies as gradual changes on a 7-day to 4-week basis. [5][6] As a result, it is appropriate to approach it as a gradual improvement in condition through cumulative use, rather than expecting an immediate effect.

What are the differences between Panthenol and glycerin/hyaluronic acid?

All three ingredients are in the hygroscopic moisturizing category, but they act in different ways. Glycerin is a small molecule that settles quickly within the stratum corneum, while hyaluronic acid is a large molecule that supports surface hydration and volume impression. In addition to hygroscopic moisturizing, panthenol has a reported pathway of being converted into pantothenic acid to support barrier lipid synthesis, so the point of differentiation is that it supports the texture of moisturizing, barrier, and soothing together. [1][2][17][18][19]

By what criteria should I choose Panthenol cosmetics?

If dryness/tightness care is the priority, it is helpful to look at a formulation combined with hygroscopic moisturizing ingredients such as glycerin and hyaluronic acid; if barrier care is the priority, a formulation combined with ceramide, cholesterol, and fatty acids; and if condition stabilization after irritation is the priority, a formulation designed together with soothing support ingredients such as Cica and madecassoside. [10][11] Because formulation design determines the perceived effect of panthenol, it is better to examine the full ingredient composition together rather than judging by the concentration of a single ingredient alone.

Panthenol is often used in haircare products too, so why isn't it covered in this article?

Panthenol is an ingredient frequently used in the scalp and hair care area as well, but this content is limited to the perspective of skincare. The scalp and hair care area is separated into distinct content, and this article focuses on the use of panthenol in facial and body skincare formulations.

Sources

※ The effects and technologies of ingredients described in this content are based on Amorepacific's own research and publicly available academic and scientific sources to provide a general understanding of cosmetic ingredients. It is not intended for medical diagnosis or treatment purposes. For personal medical concerns, please consult a qualified medical professional.