Biosilk Silk Therapy Serum 5.64 oz – Leave-In Hair Serum for Smooth & Shiny Hair
Biosilk Silk Therapy Serum 5.64 oz. This lightweight leave-in hair serum helps smooth frizz, improve manageability, and add brilliant shine without weighing hair down.
Infused with silk proteins, the formula helps strengthen and condition hair while leaving it silky, soft, and healthy-looking. Ideal for all hair types, including dry, damaged, color-treated, and chemically treated hair.
Key Benefits
- Smooths frizz and flyaways
- Adds shine and softness
- Lightweight leave-in formula
- Helps strengthen and condition hair
- Suitable for all hair types
| Product Details |
|---|
| Size: 5.64 oz |
| Form: Leave-in serum |
| Key Ingredient: Silk proteins |
| Best For: All hair types, including dry, damaged, color-treated, and chemically treated hair |
FAQ
Can this serum be used on color-treated hair?
Yes, the serum is suitable for color-treated hair and helps maintain shine and reduce frizz without fading color.
Does it leave hair feeling heavy?
No, it has a lightweight formula that adds shine and smoothness without weighing hair down.
Is it safe for chemically treated hair?
Yes, it is formulated to be safe and beneficial for chemically treated hair, helping to strengthen and condition.

Isaac Edmunds –
I’ve used this serum for a few weeks now and my hair feels smoother every day. It reduces frizz significantly, especially in the humidity. My color stays vibrant and the shine is noticeable without making my hair look greasy.
Leonard Bailey –
Great product for daily use. My dry ends are now softer and more manageable. I apply it after washing and before styling. It doesn’t coat my hair, just adds a healthy sheen.
Penelope Knox –
Works well for my curly hair. It helps tame flyaways and gives a polished look. A little goes a long way, and it doesn’t make my hair feel sticky.
Carol Slater –
After using this serum, my hair feels stronger and more resilient. I noticed less breakage and better hold when styling. Perfect for color-treated hair.
Lisa Mitchell –
I apply it to damp hair and it absorbs quickly. It gives a natural shine and makes brushing easier. Slight improvement in manageability, especially when my hair is dry.