Biosilk Silk Therapy Original Hair Serum 167ml is a smoothing, conditioning hair serum from American haircare house Biosilk. The lightweight, cult-favourite serum smooths frizz, adds shine and helps protect against heat styling — for visibly softer, glossier and more manageable hair.
About Biosilk Silk Therapy
Biosilk is the American haircare house, internationally celebrated for its silk-protein-infused haircare. Silk Therapy Original is its iconic shine-and-smooth serum.
Key features
- Format: hair serum
- Action: smooths frizz, adds shine and helps protect against heat
- Hero ingredient: silk proteins
- Texture: lightweight oil
- Best for: all hair types, especially frizzy or coloured hair
Who it's for
Best for those who want smoother, glossier hair and want to protect against heat styling — and a salon-favourite choice for fans of Biosilk.
How to use
- Dispense a few drops into the palms.
- Distribute evenly through towel-dried or dry hair, focusing on mid-lengths and ends.
- Style as usual.
- Use sparingly to avoid weighing the hair down.
Specifications
- Size: 167ml
- Format: Hair serum
- Brand: Biosilk
- Range: Silk Therapy Original
- Gender: Unisex



