BioSilk

BioSilk Silk Therapy Original Leave-In Hair Treatment 12 oz — lightweight shine, frizz control

High-performance beauty made for confident daily results

$36.70

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Why customers choose Origin Beauty

BioSilk Silk Therapy Original is a weightless, leave-in silk protein treatment that smooths, adds shine, and helps reconstruct hair without sulfates, parabens, or cruelty.

If you want a daily finishing and repair treatment that works across hair types, BioSilk Silk Therapy Original delivers a light layer of silk proteins to fill cuticle gaps, reduce frizz, and improve manageability. Formulated to be used on damp or dry hair, this 12 oz (355 ml) leave-in serum supports detangling, enhances shine, and helps minimize the look of split ends while remaining sulfate‑ and paraben‑free.

How does this treatment improve hair texture?

Silk proteins and conditioning agents in the formula bond to weakened areas of the hair shaft, creating a smoother surface that reflects light better. The result is softer-feeling hair with fewer rough edges that catch and tangle.

  • Fills voids in the cuticle to smooth strands
  • Reduces friction for easier detangling
  • Leaves a light, non-greasy finish that enhances shine

When and how should I apply it for best results?

Use a small amount on towel-dried hair to detangle and condition before styling, or apply a drop to dry hair to tame flyaways and boost gloss. It works under heat tools as a smoothing layer but is not marketed as a heat protectant with a specific temperature rating.

  • Apply 1–2 pumps to damp hair, distribute mid-lengths to ends
  • Use sparingly on fine hair to avoid weighing it down
  • Reapply a tiny amount to dry hair for shine and frizz control

Will this help with split ends and damaged hair?

BioSilk’s formula helps reconstruct and temporarily bind frayed ends to improve the appearance of damage and slow further splitting. While it doesn't replace a trim, it visually smooths split ends and strengthens weakened sections between cuts.

  • Reconstructs damaged areas for a healthier look
  • Helps prevent future split ends by smoothing cuticle layers
  • Supports manageability so brushing causes less breakage

Is the formula suitable for my hair type and values?

The product is designed for straight, wavy, curly, fine, and textured hair, offering universal compatibility because it’s lightweight and rinseless. It’s also cruelty‑free and free from sulfates and parabens, making it appropriate for those avoiding those ingredients.

  • Safe for most hair textures when used in small amounts
  • Sulfate‑ and paraben‑free for gentler daily use
  • Cruelty‑free for ethical shoppers

Who is this for: BioSilk Silk Therapy Original is ideal for anyone seeking a versatile, everyday leave-in that improves shine, eases styling, and helps mask the appearance of damage without heavy oils or rinsing. Choose it if you want a lightweight reconstructing serum that performs across hair types and fits routines that prioritize ingredient-conscious grooming.

Ingredients

Cyclopentasiloxane, Cyclotetrasiloxane, Dimethiconol, Cyclohexasiloxane, Alcohol Denat, C12-15 Alkyl Benzoate, Phenoxyethanol, Panthanol, Ethyl Estedr of Hydrolyzed Silk, Fragrance, Benzyl Benzoate, Hexyl Cinnamal, Linalool, Alpha-Isomethyl Ionoe, Citronellol, Gerniol, Hydroxycitronellal, Butylphenyl Methylpropional, Eugenol, BCC12-Base

FAQ

Q: Can I use BioSilk Silk Therapy on color-treated hair?

A: Yes. The sulfate‑ and paraben‑free formula is safe for color-treated hair and helps enhance shine without stripping color.

Q: How much product should I use per application?

A: Start with one pump for short or fine hair, two for medium to long hair, and adjust as needed to avoid buildup.