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BioSilk

BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 12 Oz

  • Based on 25,916 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Sep 7
Order within 7 hours and 10 minutes
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Size: 12 Fl Oz (Pack of 1)


Features

  • WEIGHTLESS LEAVEIN 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 healthierlooking hair.
  • ALLHAIR-TYPES FORMULA: Gentle, crueltyfree, sulfate and parabenfree treatment suitable for straight, wavy, curly, fine or textured hair.
  • MULTIPURPOSE 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.

Description

Ideal for all hair types. Fills voids in cuticle to create smooth hair. Leave in replenishing & reconstructing treatment. Aids in preventing split ends, provides incredible shine.

Language ‏ : ‎ English


Product Dimensions ‏ : ‎ 3 x 1.75 x 9.5 inches; 0.02 ounces


Item model number ‏ : ‎ BSST12


Batteries ‏ : ‎ 1 A batteries required.


UPC ‏ : ‎


Manufacturer ‏ : ‎ BioSilk


Best Sellers Rank: #3,185 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #18 in Hair Treatment Masks


#18 in Hair Treatment Masks:


Customer Reviews: 4.8 4.8 out of 5 stars (25,916)


Item Form: Lotion


Hair Type: All


Product Benefits: Shining, Smoothening, Split Ends Repair


Scent Name: Amber


Additional Features: Not Tested On Animals


Hair Conditioner Type: Leave-In Hair Conditioner


Unit Count: 12 Fluid Ounces


Number of Items: 1


Item Dimensions: 3 x 1.75 x 9.5 inches


Liquid Volume: 12 fluid ounces


Item Weight: 0.52 g


Size: 12 Fl Oz (Pack of 1)


Brand Name: BioSilk


Age Range Description: Adult,Teen


Manufacturer: BioSilk


UPC: 633911744956


Global Trade Identification Number: 56


Item Type Name: Leave-In Treatment


Model Number: BSST12


Manufacturer Part Number: BSST12


Material Features: B002JLUY2M


Material Type Free: Paraben Free


Active Ingredients: vitamin e,amino acids


Special Ingredients: Vitamin E


Recommended Uses For Product: All Hair Types


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • ⭐⭐⭐⭐⭐ Soft, Shiny, and Frizz-Free Hair
Review Image by Lilianis
BioSilk Silk Therapy is one of the best leave-in treatments I have ever used. It leaves my hair incredibly soft, silky, and shiny after just one application. It helps control frizz, makes detangling easier, and does not leave a greasy feeling when used in the right amount. The fragrance is also pleasant and long-lasting. I love that it can be used on both hair and skin. This is a high-quality product that makes my hair look healthier and well cared for. I will definitely purchase it again. ... show more
Reviewed in the United States on June 15, 2026 by Lilianis
    • Best for bleached hair
Amazing as always. Perfect for bleached hair. It brings back a soft feel and takes away the look of dry texture without leaving greasy looking residue. I still have not found a comparable product to treat my bleached black hair. It keeps it from breaking and allows me to brush it without tons of breakage. It has a subtle scent that refreshes in between washes and keeps my hair from tangling too much. ... show more
Reviewed in the United States on July 18, 2026 by Manda
    • Dime size is all you need for AMAZING, SMOOTH, SPLIT ENDS CLOSED results!
This stuff is absolutely amazing! My hairdresser had used it in me in my 20's and not until recently had I used it again. A friend had purchased this for me for my birthday and I can't believe what a dramatic change it does to my fine, limp hair. Just a dime size will do (wait til your hair is damp but not wet for best results otherwise you end up with the greasy look). It might seem a bit pricey, but a little goes a long way. It will give you shine like no tomorrow plus close any split ends that you may have. I'm absolutely in love with this product and am so happy to be reunited with it once again. Highly recommend to everyone regardless of texture or hair follicles. It really IS miracle cure and an instant styler for all. ... show more
Reviewed in the United States on June 4, 2026 by Loyal Customer
    • Shine and removes tangles.
I use this after shampooing while my hair is still wet. It only requires a small drop, rubbed in my palms then rubbed into my hair. I don’t use conditioner as this makes my hair easy to brush with minimal tangles, and adds shine. I love this stuff!
Reviewed in the United States on June 27, 2026 by Gail L
    • Great product
Love this. Not oily. Makes my hair super soft and shiny.
Reviewed in the United States on June 30, 2026 by Betty Brown
    • Silly soft and the best skin product EVER!
This is the absolute BEST product! It leaves my skin so silky smooth and soft. It’s great for the hair as well but I just can’t believe how wonderful it is for my skin. Even my husband noticed the difference. Love it and will continue to use this product. It has a little floral fragrance. It initially feels greasy but quickly turn to a satin silky feeling. ... show more
Reviewed in the United States on July 4, 2026 by Heather
    • 12oz Silk Therapy
Truly superb product for a light, fragrant, yet protective serum for most all hair types. Highly recommended
Reviewed in the United States on April 28, 2026 by Katrina Simbre
    • Great for the value I paid and size was huge
Perfect!
Reviewed in the United States on July 25, 2026 by April Lagrone

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