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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

  • Based on 40,108 reviews
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Availability: In Stock.
Fulfilled by Hair Passion
Arrives May 1 – May 5
Order within 19 hours and 41 minutes
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Size: 5.64 Fl Oz (Pack of 1)


Features

  • CREATES SMOOTH & SHINY HAIR: For centuries, silk was celebrated as a luxurious fabric due to its smooth texture & brilliant luster. This treatment was created as a weightless, leave-in silk replenishing formula to repair, smooth & protect all hair types.
  • ORIGINAL SILK THERAPY: In 1986, Farouk Shami researched & discovered the benefits of silk & how it could be used for hair. He knew that women wanted their hair to be shiny, healthy looking & conditioned. Silk solved these 3 issues with this one product.
  • BIOSILK HAIR TREATMENTS: BioSilk has some of the most powerful and effective treatments. Whatever your style, we have a treatment just for you. Choose yours today.
  • HOW TO USE: Shake well before use. Place a small amount of silk therapy in your palms and apply from the scalp to ends. May be used on wet or dry hair or skin. Use as often as necessary.
  • BIOSILK: The quest for healthier hair is how BioSilk Silk Therapy emerged in 1986. The creation of the Original Silk Therapy treatment has led to the development of BioSilk Hair Color and a full range of 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

Is Discontinued By Manufacturer ‏ : ‎ No


Language ‏ : ‎ English


Product Dimensions ‏ : ‎ 10.5 x 15 x 5.6 inches; 5.64 ounces


Manufacturer recommended age ‏ : ‎ 18 months - 8 years


Item model number ‏ : ‎ 7


UPC ‏ : ‎


Manufacturer ‏ : ‎ Farouk Systems


Best Sellers Rank: #6,881 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #35 in Hair Treatment Masks


#35 in Hair Treatment Masks:


Item Form: Gel


Hair Type: Damaged


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


Scent Name: Amber


Additional Features: Natural Ingredients, Not Tested On Animals


Package Type Name: Bottle


Hair Conditioner Type: Leave-In Hair Conditioner


Unit Count: 167 Milliliters


Number of Items: 1


Item Dimensions: 10.5 x 15 x 5.6 inches


Liquid Volume: 5.64 Fluid Ounces


Item Weight: 5.64 Ounces


Size: 5.64 Fl Oz (Pack of 1)


Brand Name: BioSilk


Age Range Description: Adult


Manufacturer: Farouk Systems


UPC: 885376771088 633911401033 885892172208 885401537894 885529336812 633911651223 633911747223 885376888830


Global Trade Identification Number: 47


Model Number: 7


Manufacturer Part Number:


Included Components: Active Substance Combinations


Material Features: Cruelty Free


Material Type Free: BPA Free, Gluten Free, Paraben 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: May 1 – May 5

This item is non-returnable:

This item is non-returnable

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
    • Smells good and shiny hair
Size: 5.64 Fl Oz (Pack of 1)
Review Image by Kayyyy
Review Image by Kayyyy
I love this serum. Love the smell, how it feels on your hair, makes your hair shine and frizz free.
Reviewed in the United States on February 15, 2026 by Kayyyy
    • Fantastic stuff!!!
Size: 5.64 Fl Oz (Pack of 1)
I used this product years & years ago when in high school & took a cosmetology class & it was used at the school off campus. I have an oily scalp but have highlighted & bleached my hair since I was 16 so the hair needs moisture to combat the damage. This serum is a miracle! I took a chance & looked for it some 30 years later on Amazon & here it is! It is just the best for untangling wet hair after washing without damage & without leaving hair weighed down & greasy looking! It's a leave-in so you don't have to rinse out & a little pea-sized puddle worked through wet hair is all you need. It is super slick for detangling with a wide-toothed comb but as long as you work it throughout your hair it doesn't dry to a crunchy state or goop up hair that is naturally oily & straight like mine. And when it drys, your hair will feel so soft & look so shiny and amazing without making it prematurely greasy. Oh, and it smells great too! ... show more
Reviewed in the United States on May 25, 2025 by Amanda A.
    • Makes your hair and skin soft!
Size: 5.64 Fl Oz (Pack of 1)
BioSilk Silk Therapy is a fantastic multi-purpose product that truly lives up to its name. A small amount goes a long way in transforming hair, leaving it feeling incredibly soft, silky, and frizz-free without any greasy residue. It also works wonders on dry skin, providing a boost of hydration that absorbs quickly. The classic, clean scent is an added bonus. It's an excellent investment for anyone seeking a versatile product to nourish both their hair and body. ... show more
Reviewed in the United States on September 3, 2025 by valarie mcroberts
    • My All-Time Favorite Hair Product
Size: 34 Fl Oz (Pack of 1)
Love, love, love this! BioSilk Silk Therapy is hands down my favorite product for my hair. It leaves my hair feeling incredibly soft, smooth, and shiny without feeling greasy or weighed down. It really helps tame frizz and makes my ends look healthier, especially when I’m trying to prevent split ends. A little goes a long way, so the bottle lasts a long time too. And the scent… absolutely amazing! I constantly get compliments on how great my hair smells when I use this. If you want shine, softness, and that fresh salon scent, this is a must-have. ... show more
Reviewed in the United States on February 15, 2026 by Roxanne
    • Great product but sometimes difficult to use
Size: 5.64 Fl Oz (Pack of 1)
The product works well with two caveats. One, the product is thick, and I find it difficult to distribute it on my dry hair even on the ends. I get a clump one area and nothing in other areas. I have only tried it on dry hair, so maybe I should try it on wet. But where it does get applied, it’s magical, and how it softens the hair and shines TWO, the bottle leaks. I don’t know if after the first use there’s some oily product in the closable top and thus it no longer closes all the way. I’ve wasted at least a third of the bottle via leakage. So beware! Place in a Ziploc bag, if you travel and expect there to be some product in the bag when you land. ... show more
Reviewed in the United States on April 7, 2026 by Karen K
    • 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]
    • Great quality, smells nice, and makes my hair very touchable!
Size: 5.64 Fl Oz (Pack of 1)
My mother turned me onto this stuff years ago and I still love it. You need a very very small amount so a bottle lasts quite a while. After washing and towel dry, I massage this into my wavy hair and it feels silky smooth and soft until I wash it again. It also smells really nice (but not strong or too much like perfume). If you have dry hair or split ends, you need to try this magical potion! ... show more
Reviewed in the United States on December 11, 2025 by Sinnickel

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