Silk Amino Acids
Silk amino acids are a gentle, lightweight conditioning ingredient derived from silk fibres. They help skin and hair feel smoother, softer and more hydrated without any greasy residue. Popular in UK skincare and haircare for delivering a silky touch and subtle sheen.
How it works in skincare
In cosmetics and skincare, silk amino acids act as a natural humectant and film-former, binding moisture to the surface of skin and hair while forming a breathable, protective layer. This helps improve smoothness and suppleness, reduces static and flyaways in hair, and gives a soft-focus finish to complexion products. Their low molecular weight allows easy absorption, making them ideal for lightweight serums, creams, conditioners and masks.
Key benefits
- Improves skin softness and smoothness
- Enhances moisture retention
- Adds shine and manageability to hair
- Reduces static and flyaways
- Provides a silky, non-greasy feel
- Supports a healthy-looking skin barrier appearance
Best for
dry skin, dehydrated skin, mature skin, sensitive skin, normal to combination skin
Where it comes from
Silk amino acids are obtained from the cocoons of the silkworm (Bombyx mori). The natural protein fibres are hydrolysed to release the individual amino acids.
Products with Silk Amino Acids
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Silk Amino Acids than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.