Amino Acids
Alanine / Arginine / Glycine / Serine / Proline
Also known as: Alanine · Arginine · Glycine · Serine · Proline · Threonine · Isoleucine · Histidine · Valine · Phenylalanine
HumectantBarrier repairMoisturising
“The building blocks of skin protein that hydrate and support barrier function.”
What it does
Amino acids are the monomers of proteins and are found naturally in the skin's NMF. Topically, they act as humectants to draw water into the skin, support barrier function, and provide the raw materials needed for collagen and keratin synthesis. Products often list individual amino acids (alanine, glycine, arginine, etc.).
Benefits
- Humectant — draws moisture to the skin surface
- Supports collagen and elastin synthesis
- Strengthens skin barrier integrity
- Soothing and well-tolerated by all skin types
How to layer
☀️ Morning routine
Cleanser
Toner
Serum
Moisturiser
SPF
🌙 Evening routine
Cleanser
Toner
Serum
Moisturiser
Face Oil
As the last step in your routine
Good for
All skin
Works well with
How to use
Found in hydrating serums and creams. No special application needed.
Typical concentration: 0.1–5% in formulations