Researched by Helena DeMaria-Williams
Formula IngredientAmino AcidGlycine
INCI: Glycine
Glycine is the simplest and smallest amino acid, naturally present in the skin as part of the Natural Moisturising Factor (NMF). It is a key building block of collagen (making up roughly one-third of collagen's amino acid composition) and elastin. In cosmetics it functions as a moisturiser and skin-conditioning agent, and research suggests it may support wound healing and tissue repair.
Category
Amino Acid
Irritation Risk
Low
Skin Types
all skin types, dry, dehydrated, sensitive, mature, wound-prone skin
What does this do in a formula?
hydration, skin conditioning, collagen support, wound healing support, anti-wrinkle (in combination with leucine and proline), skin-identical moisturisation
Is Glycine safe? Key considerations
Can Glycine cause irritation?
Low RiskAs the simplest naturally occurring amino acid and a major component of the skin's own proteins, glycine is extremely well tolerated. No irritation concerns at cosmetic concentrations. Not subject to any EU Annex restrictions.
Does Glycine increase sun sensitivity?
No RiskGlycine does not increase photosensitivity. No UV-related precautions are required.
Is Glycine safe during pregnancy?
SafeGlycine is a naturally occurring amino acid abundant in the body and in food. It is considered safe for topical cosmetic use during pregnancy.
How does Glycine work?
Glycine is the simplest and smallest amino acid, naturally present in the skin as part of the Natural Moisturising Factor (NMF). It is a key building block of collagen (making up roughly one-third of collagen's amino acid composition) and elastin. In cosmetics it functions as a moisturiser and skin-conditioning agent, and research suggests it may support wound healing and tissue repair.
