functional

Glycerin

Evidence tier

MODERATE

Evidence score

HQ studies

Total studies

Goal scores

Acne

13 studies

Brightening

13 studies

Barrier

13 studies

Anti Aging

13 studies

Hydration

13 studies

Sebum

13 studies

Sensitivity

13 studies

Interactions

synergy · Hyaluronic Acid

HA draws water to skin surface while glycerin acts as a humectant at deeper levels. Multi-layer hydration approach.

synergy · Ceramide NP

Glycerin draws moisture while ceramides prevent water loss. Humectant + occlusive/barrier approach for maximum hydration.

synergy · Niacinamide

Niacinamide increases ceramide production and strengthens barrier; glycerin provides humectant hydration. Multi-level skin hydration strategy.

synergy · Squalane

Classic humectant + emollient combination. Glycerin attracts water, squalane locks it in. Simple but highly effective.

myth · Ascorbic Acid

Myth: "glycerin reduces vitamin C absorption." No evidence. Glycerin as a humectant is compatible with all actives.

Citations

PMID:40736038
Clinical Observation of a Novel Moisturizing Cream for Reducing Neurovascular Hyper-Reactivity in Sensitive Skin.
PMID:40984677
Cosmetic and Application Qualities of the Cream Physiorelax Compared to Another Topical Cream for Musculoskeletal Health Care: An Organoleptic Expert Panel Approach.
PMID:39237662
Cocos nucifera and glycerine afterwork moisturizers for secondary prevention of hand dermatitis among fabric worker: a randomized, double-blind, cross over trial.
PMID:37675167
Comparing the effectiveness of topical dexamethasone emollient, lidocaine gel, and glycerin emollient on the endotracheal tube for postoperative hoarseness of voice, sore throat, and laryngospasm.
PMID:40635529
A Randomized, Investigator-Blinded, Split-Face, Controlled Trial Evaluating the Efficacy and Satisfaction of a Topical Product Containing Blueberry Extract and Pro-Xylane Combined With Micro-Focused Ultrasound for Anti-aging.
PMID:19487926
N-acetylcarnosine lubricant eyedrops possess all-in-one universal antioxidant protective effects of L-carnosine in aqueous and lipid membrane environments, aldehyde scavenging, and transglycation activities inherent to cataracts: a clinical study of the new vision-saving drug N-acetylcarnosine eyedrop therapy in a database population of over 50,500 patients.