Researched by Helena DeMaria-Williams
Formula IngredientAmino AcidProline
INCI: Proline
Proline is a non-essential proteinogenic amino acid and one of the major building blocks of dermal collagen. It is a cyclic secondary amine synthesised from glutamic acid, found widely throughout the human body. As a component of the skin's Natural Moisturising Factor (NMF), it helps maintain hydration in the stratum corneum and supports the structural integrity of the skin.
Category
Amino Acid
Irritation Risk
Low
Skin Types
all skin types, ageing skin, dry skin, dehydrated skin
What does this do in a formula?
collagen production support, hydration, skin conditioning, anti-ageing, improved skin elasticity, skin repair and regeneration
Is Proline safe? Key considerations
Can Proline cause irritation?
Low RiskThe Cosmetic Ingredient Review (CIR) Expert Panel concluded that proline and other alpha amino acids are safe as used in cosmetics. Dermal studies indicate it is not a skin irritant or sensitiser. No EU CosIng Annex II or III restrictions apply.
Does Proline increase sun sensitivity?
No RiskProline does not increase photosensitivity. No special sun protection measures are required when using proline-containing products.
Is Proline safe during pregnancy?
CautionProline is a naturally occurring amino acid in the body and is generally considered low risk. However, WebMD notes there is not enough reliable information to confirm safety of topical proline during pregnancy. Consult a healthcare provider. Amounts found naturally in foods are considered safe.
How does Proline work?
Proline is a non-essential proteinogenic amino acid and one of the major building blocks of dermal collagen. It is a cyclic secondary amine synthesised from glutamic acid, found widely throughout the human body. As a component of the skin's Natural Moisturising Factor (NMF), it helps maintain hydration in the stratum corneum and supports the structural integrity of the skin.
Which products contain Proline?
Shop products that contain Proline
Glycolic Acid 7% Exfoliating Toner
Multi-Peptide + Copper Peptides 1% Serum
Squalane + Amino Acids Lip Balm
Natural Moisturizing Factors + HA
Natural Moisturizing Factors + PhytoCeramides
Multi-Peptide + HA Serum
Natural Moisturizing Factors + Beta Glucan
Soothing & Barrier Support Serum
Natural Moisturizing Factors + Inulin Body Lotion
Marine Hyaluronics
Amino Acids + B5
