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BioSilk

BioSilk Silk Therapy Original, Reconstructing Treatment For Adding Shine & Helping Prevent Split Ends, Sulfate, Paraben, & Cruelty-Free, 5.64 Oz (Pack of 12)

  • Based on 16,626 reviews
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Oct 9
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Size: 5.64 Fl Oz (Pack of 12)


Features

  • The information below is per-pack only
  • 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

BioSilk is the original silk infused line of hair care products using natural pure silk in every product. Silk contains 17 of the 19 amino acids in hair and is the strongest fiber in the world equal to steel. Silk Therapy is the original weightless, leave-in silk replenishing and reconstructing treatment to repair, smooth and protect all hair types. Benefits: Ideal for all hair types Leave in replenishing & reconstructing treatment Fills any voids in cuticle layer Aids in preventing split ends Provides incredible shine

Product Dimensions ‏ : ‎ 10.5 x 15 x 5.6 inches; 4.23 pounds


Item model number ‏ : ‎ 7


Manufacturer ‏ : ‎ Farouk Systems


Best Sellers Rank: #4,906 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #3,128 in Hair Styling Creams & Lotions


#3,128 in Hair Styling Creams & Lotions:


Customer Reviews: 4.7 4.7 out of 5 stars (16,626)


Item Form: Gel


Hair Type: All


Product Benefits: Shining, Smoothening, Split Ends Repair, UV Protection


Scent Name: Amber


Additional Features: Not Tested On Animals


Package Type Name: Bottle


Hair Conditioner Type: Leave-In Hair Conditioner


Brand Name: BioSilk


Age Range Description: Adult


Manufacturer: Farouk Systems


Included Components: Active Substance Combinations


Model Number: 7


Manufacturer Part Number:


Unit Count: 67.68 Fluid Ounces


Number of Items: 12


Item Dimensions: 10.5 x 15 x 5.6 inches


Liquid Volume: 67.68 fluid ounces


Item Weight: 4.2 pounds


Size: 5.64 Fl Oz (Pack of 12)


Material Features: Cruelty Free


Material Type Free: Gluten Free


Active Ingredients: vitamin e


Special Ingredients: Vitamin E


Recommended Uses For Product: Shine


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 9

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.

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Similar Products

Top Amazon Reviews

    • Shine, protection and best aroma
Size: 5.64 Fl Oz (Pack of 1)
I’ve been using BioSilk Silk Therapy Original for years, and it’s still one of my go-to hair products. It leaves my hair feeling soft, smooth, and noticeably healthier without weighing it down. A little goes a long way, and it helps control frizz while adding a nice shine. It’s one of those products I always come back to because it just works. ... show more
Reviewed in the United States on April 21, 2026 by Jennifer Ojeda
    • BioSilk
Size: 5.64 Fl Oz (Pack of 1)
BioSilk it's an amazing product. I especially like this one I put just a piece size drop in my hand after I wash my hair and I run it through there and my hair smells great and it feels really good. I would recommend giving this a try. You will not be disappointed.
Reviewed in the United States on September 1, 2026 by Sheri
    • This should be my 4th bottle now!
Size: 5.64 Fl Oz (Pack of 1)
I’ve been using BioSilk Silk Therapy for a few years now, and I’m honestly blown away. My hair has always been on the dry and frizzy side, but just a few drops of this serum after washing make it feel silky smooth and look like I just stepped out of a salon. The shine is unreal, and it never feels greasy or weighed down. I also love that it works on both damp and dry hair, so I can use it for a quick touch-up before heading out. The scent is light and pleasant, and a little goes a long way, so the bottle will last a long time. This has become my go-to product for keeping my hair healthy, soft, and frizz-free. Highly recommend to anyone who wants that sleek, polished look without spending hours on styling! ... show more
Reviewed in the United States on August 13, 2025 by Ada
    • Silky with out oiliness
Size: 5.64 Fl Oz (Pack of 1)
This makes my frizzy hair soft and super silky with out making it look dirty! Love!
Reviewed in the United States on August 25, 2026 by Christy Bennett
    • Good product
Size: 5.64 Fl Oz (Pack of 1)
Smells so good and leaves your hair silky
Reviewed in the United States on August 17, 2026 by Nisayet
    • Biosilk Lives Up To It's Description
Size: 5.64 Fl Oz (Pack of 1)
After trying numerous products to tame and moisturize my long, curly hair, I've finally found a winner. Among the list of contenders, OGX comes closest to BioSilk, which I've recently discovered. OGX does an excellent job of keeping my hair soft and hydrated, though it can leave a slight oily residue on hands and surfaces due to its coconut oil content. Despite this minor inconvenience, the results are worth it. Upon stumbling upon BioSilk and noticing its overwhelmingly positive reviews, I decided to give it a try. I was pleasantly surprised by its delightful scent and the small amount needed for my entire head of hair. Unlike other oils, BioSilk doesn't leave my hair feeling greasy or my hands feeling oily. My hair now feels incredibly soft and manageable, prompting me to rate it a solid 5 stars for now. If anything changes, I'll be sure to update my review, but I have a feeling I've found my go-to product. UPDATE: As promised, here's my updated review after further use of the product. My initial impressions remain positive, particularly regarding the immediate softening effect and the fantastic scent. However, I've noticed it leaves my fine hair feeling dry and coarse the next day. It loses its silkiness and takes on a stringy texture. While I plan to finish the bottle due to its immediate benefits, I find that OGX products better maintain my hair's overall health and texture. I've lowered my rating by one star, but still believe this is a fantastic product overall. ... show more
Reviewed in the United States on May 1, 2024 by Deborah Maria
    • Smoother more tame hair
Size: 5.64 Fl Oz (Pack of 1)
A little goes a long way. 2 drops will probably be enough for dry hair, more for wet shampooed hair.
Reviewed in the United States on September 2, 2026 by Amazon Customer
    • Needed in a dry climate with strong UV exposures. GOOD dupe for Olaplex no9
Size: 5.64 Fl Oz (Pack of 1)
If your hair has been untamed and you live in a more dry and UV exposed climate, this product can help your hair behave how you'd expect it would in a less dry climate. Without the use of heat/gel/hot blowdrying tools. It can also provide relief from clarifying shampoos which affect your hair when you are in a more dry climate. Compared to Olaplex antioxidant serum no9, it is an ok dupe great for the value. It lasts longer than no9 if you have lots of hair. Less product is required than no9 for distribution. Though it makes no claims to protect hair from UV/free radicals like no9 it will help you get your hair healthier and where you want it in 3 months if you're trimming off your split ends periodically. It will weigh down more your hair than no9 and make your hair appear more fatty after the first day. Not a bad thing if you live in a arid-climate that dries out your hair. Certainly better than applying no protections or using a plant-oil for your hair inbetween washes. Unlike Olaplex no9 serum, the application lasts days, if you apply to damp hair after washing. It also has a higher viscosity that requires less amount and less applications post wash. It can save you between wash days. If you are not trying to dazzle with your hair down hairstyle on the daily and are ok with heavier/fattier appearing between washes. For example in a dry climate you might wear a protective style and a sun hat. It works very well for growing hair. The product has enabled me to grow out healthier hair, seal hair ends, and brush my hair with ease all week long. Where my hair was previously prone to daily tangling, split ends and dryness. A great product with great value. A small provision also last a while and the proce os ve ty reasonable. This product has been life changing for my hair. It is common for shampoos and washes to dry out hair, despite product claims to add moisture or body. In an arid climate, that simply doesn't apply. This product will leave hair manageable and helathier if used as directed (apply to damp hair after washing. Reapply as needed to dry hair to untangle and reduce frizz). ... show more
Reviewed in the United States on May 11, 2024 by Local User[ommited]

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