BioSilkSilk Therapy Original Leave-In Treatment

Name: BioSilk Silk Therapy Original Leave-In Treatment
Brand: BioSilk
SKU: B001797W40
Price: 13.74 USD
Availability: InStock

Instead of Davines OI Oil, $57Hair oil

$13.74 $38

You save $24.26 (64%) off the list price

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Size 167 ml, $2.43 / fl oz

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Amazon price as of Sep 28, 2026, 1:12 AM ET, subject to change: the price on Amazon at checkout is the one that applies. We may earn a commission; the price you pay is the same.

The luxury original: Davines OI Oil, $57

What matches: Built the same way: a clear, water-free serum whose fast-evaporating carriers leave a film of dimethiconol on the hair for shine and frizz control.

What it does worse: Davines carries it in cyclopentasiloxane and disiloxane and adds roucou extract, sunflower oil and a sunscreen, octinoxate, while BioSilk uses a light isoalkane and isododecane with alcohol, panthenol and silk.

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About the Product

What it is: Clear leave-in shine serum of dimethiconol in light, fast-drying carriers, with panthenol and silk. 5.64 fl oz.

What Else You Need to Know:

Weightless leave‑in treatment: Silk Therapy Original infuses hair with silk proteins to repair, smooth, and protect strands without heaviness.
Repairs & strengthens: Helps rebuild damaged hair, prevent split ends, reduce frizz and improve shine for healthier‑looking hair.
All‑hair types formula: Gentle, cruelty‑free, sulfate‑ and paraben‑free treatment suitable for straight, wavy, curly, fine or textured hair.
Multi‑purpose care: Use on wet or dry hair to detangle, condition, add shine, and help protect from heat and environmental stress.
Biosilk: The quest for healthier hair is how BioSilk Silk Therapy emerged in 1986. The creation of the BioSilk Silk Therapy Original treatment has led to the development of a full range of BioSilk hair products.

From the Amazon listing.