Glycerin

 

Glycerin is a substance that is present in all natural fats. It is a highly effective skin-identical and repairing ingredient because it occurs naturally in the skin. It helps maintain and protect the outer barrier and prevent dryness. Glycerin has always raised the question as to whether or not it draws too much moisture from the skin, but this only happens if used in 100% concentration. Glycerin and other humectants are often combined with other ingredients to moisturize and soften skin. Several scientific studies have found Glycerin to be an effective moisturizer. In addition to preventing dryness and scaling, Glycerin repairs and heals, reduces inflammation, and restores normal skin functions.

 

Sources:

Lodén M, Andersson AC, Anderson C, Bergbrant IM, Frödin T, Ohman H, Sandström MH, Särnhult T, Voog E, Stenberg B, Pawlik E, Preisler-Häggqvist A, Svensson A, Lindberg M.; A double-blind study comparing the effect of glycerin and urea on dry, eczematous skin in atopic patients. Acta Derm Venereol. 2002;82(1):45-7. Available: http://www.ncbi.nlm.nih.gov/pubmed/12013198                                                                                                                                          Kraft J, Lynde C.; Moisturizers: what they are and a practical approach to product selection. Skin Therapy Lett. 2005;10(5):1-8.

Lorencini M, Brohem C, Dieamant G, Zanchin N, Maibach H.; Active ingredients against human epidermal aging. Ageing Res Rev. 2014;15:100-15.

Short R, Chan J, Choi J, Egbert B, Rehmus W, Kimball A.; Effects of moisturization on epidermal homeostasis and differentiation. Clin Exp Dermatol. 2007;32(1):88-90.

Roure R, Lanctin M, Nollent V, Bertin C.; Methods to Assess the Protective Efficacy of Emollients against Climatic and Chemical Aggressors. Dermatol Res Pract.2012;2012:864734.

Fowler JF Jr.; Efficacy of a skin-protective foam in the treatment of chronic hand dermatitis.

Am J Contact Dermat. 2000 Sep;11(3):165-9.

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