Humectant · 한국 전통 뷰티 성분 백과사전
글리세린geulliserin
Glycerin
The most widely used humectant in cosmetics and one of the best characterised: it binds water, and its moisturising role is established rather than promised.
Scientific identification
How to read this identification: Glycerin, glycerine and glycerol are the same material. A label does not state whether it is plant-derived or synthetic, and because glycerin is also a very common base ingredient, its position in an ingredient list does not indicate an active role.
INCI name: Glycerin
Modern cosmetic ingredient
This classification records the context the ingredient is documented in, not where it comes from: a Korean heritage ingredient is one with documented use in Korean practice, while a modern cosmetic ingredient carries no heritage claim. Neither label states that the ingredient originated in Korea.
Skin concerns this profile is offered for
A browsing aid and a statement of cosmetic intent only: it diagnoses nothing and promises no result.
Modern cosmetic context
Glycerin is a modern cosmetic ingredient and carries no Korean heritage claim. It is included because it is the humectant in the great majority of contemporary formulations, Korean products included: essences, creams, cleansers, sheet masks and toners nearly all contain it. Its place is modern formulation, and nothing on this profile presents it as a traditional ingredient.
References
- Review literature on glycerol as a cosmetic humectant and its effect on skin hydration · Published cosmetic science and dermatological review literature
- Human studies measuring skin hydration and water loss after glycerol-containing formulations · Published dermatological literature
Modern Cosmetic Science
Modern cosmetic applications
- Used in almost every product type: toners, essences, serums, creams, cleansers and masks
- Commonly used with an emollient or occlusive, because a humectant holds water best when it is not left exposed in dry air
Glycerin is one of the best characterised cosmetic materials. It binds water, human measurements consistently show improved skin hydration after glycerol-containing products, and it has been used on skin for so long that its behaviour is well understood. That is why its humectant and moisturising roles are rated established here. Studies also describe effects on barrier-related measures and on the skin's own water handling, but those findings are less consistent across studies, so the barrier claim is rated promising.
Benefits & Limitations
Evidence by claim
Every rating applies to ONE claimed benefit. An ingredient is never given a single overall effectiveness score.
Humectant water-binding in a cosmetic formulation
EstablishedRating approved by an authorized reviewerRated established: this is the material's characterised cosmetic function and relevant human evidence supports this specific claim. Claim: Humectant water-binding in a cosmetic formulation
Moisturizing support in a formulated product
EstablishedRating approved by an authorized reviewerRated established: this is the material's characterised cosmetic function and relevant human evidence supports this specific claim. Claim: Moisturizing support in a formulated product
Support for the skin barrier in a formulated product
PromisingRating approved by an authorized reviewerRated promising: preliminary or composition-level evidence exists for this specific claim, and the rating does not extend beyond it. Claim: Support for the skin barrier in a formulated product
What is not claimed
No claim is made that glycerin repairs skin, removes wrinkles, treats a skin condition or permanently changes the skin. Improved measured hydration is a real and useful effect, but it lasts as long as the product keeps water at the surface: measured hydration after use is not a structural change.
Safety & Allergies
- Glycerin is very well tolerated and cosmetic allergy to it is rare; it is one of the materials least likely to irritate
- At a high concentration in very dry air, glycerin can feel tacky and can draw water from the skin surface, so it is normally used in a balanced formula
Related Beauty Rituals
No related beauty ritual is recorded for this ingredient yet.
Professionally formulated products
No professionally formulated product is listed for this ingredient yet.
This is a modern cosmetic ingredient. No traditional or cultural association is recorded for it, and none is claimed.
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