Ingredients Hydrating Glycerin
46Gc
Sourced from lab
Tier · Moderate evidence
Hydrating

Glycerin

INCI: Glycerin · Also called: Glycerol, Glycerine

A workhorse hydrator that pulls water into your skin. In nearly every good moisturizer for a reason.

For your skin

A workhorse hydrator that pulls water into your skin. In nearly every good moisturizer for a reason.

Want the science? Keep reading ↓

Mechanism of action

Trihydric alcohol humectant that pulls water from the dermis and atmosphere into the stratum corneum.

Why we tier this moderate

4 cited papers across 2 countries. The mechanism is well-described and there's at least one controlled trial in the literature, but we tier this Moderate rather than Strong to stay honest about how many specific papers we cite directly.

3
International
1
United States

Layering matrix

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Cited research

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Danby SG et al., Different types of emollient cream exhibit diverse physiological effects on the skin barrier in adults with atopic dermatitis, Clinical and Experimental Dermatology 2022;47(6):1154-1164 — glycerol+urea emollient delivered superior barrier-strengthening and irritant protection

2022Positive — efficacyPMID:35167133View source ↗
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Evans NJ et al., Human axillary skin condition is improved following incorporation of glycerol into the stratum corneum from an antiperspirant formulation, Archives of Dermatological Research 2017;309(9):739-748 — 4% glycerol penetrated axillary SC, reduced irritation, improved hydration

2017Positive — efficacyPMID:28889318View source ↗
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Fluhr JW et al., Glycerol and the skin: holistic approach to its origin and functions, British Journal of Dermatology 2008;159(1):23-34 — improves xerosis and barrier function

2008Positive — efficacyPMID:18510666View source ↗
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Loden M, Role of topical emollients and moisturizers in the treatment of dry skin barrier disorders, American Journal of Clinical Dermatology 2003;4(11):771-88

2003Positive — efficacyPMID:14572299View source ↗

Sources: PubMed · KCI · J-Stage · CNKI · Wanfang · SFD · MFDS · Cochrane · SCCS · CIR. Every entry points to a specific document. See methodology for what each outcome label means.