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✨ Unlock the secret to irresistibly shiny, silky hair — don’t let your locks miss out! 💁♂️
BioSilk Silk Therapy Original is a 5.64 oz leave-in hair treatment enriched with natural pure silk and vitamin E. Designed to repair, smooth, and protect all hair types, it prevents split ends and adds brilliant shine without weighing hair down. Free from sulfates, parabens, and cruelty, this iconic formula has been a trusted beauty staple since 1986, delivering salon-quality results with a lightweight, nourishing touch.



























| ASIN | B001797W40 |
| Active Ingredients | vitamin e |
| Additional Features | Natural Ingredients, Not Tested On Animals |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #4,764 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #23 in Hair Treatment Masks |
| Brand | BioSilk |
| Brand Name | BioSilk |
| Customer Reviews | 4.7 out of 5 stars 16,352 Reviews |
| Global Trade Identification Number | 00633911744147 |
| Hair Conditioner Type | Leave-In Hair Conditioner |
| Hair Type | Damaged |
| Included Components | Active Substance Combinations |
| Item Dimensions | 10.5 x 15 x 5.6 inches |
| Item Form | Gel |
| Item Weight | 5.64 Ounces |
| Liquid Volume | 5.64 Fluid Ounces |
| Manufacturer | Farouk Systems |
| Manufacturer Part Number | 633911744147 |
| Material Feature | Cruelty Free |
| Material Features | Cruelty Free |
| Material Type Free | BPA Free, Gluten Free, Paraben Free |
| Model Number | 0633911744147 |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Benefits | Shining, Smoothening, Split Ends Repair, UV Protection |
| Recommended Uses For Product | Shine |
| Scent Name | Amber |
| Size | 5.6 Fl Oz (Pack of 1) |
| Special Ingredients | Vitamin E |
| UPC | 885376771088 633911401033 885892172208 885401537894 885529336812 633911651223 633911747223 885376888830 |
| Unit Count | 5.6 Fluid Ounces |
J**A
Shine, protection and best aroma
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.
A**A
This should be my 4th bottle now!
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!
A**.
Fantastic stuff!!!
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!
K**Y
Smells good and shiny hair
I love this serum. Love the smell, how it feels on your hair, makes your hair shine and frizz free.
L**]
Needed in a dry climate with strong UV exposures. GOOD dupe for Olaplex no9
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).
K**K
Great product but sometimes difficult to use
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.
S**L
Great quality, smells nice, and makes my hair very touchable!
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!
R**E
My All-Time Favorite Hair Product
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.
D**I
My Go-To hair product
What can't this serum do? I love it! I use about a 10 cent piece worth on wet hair after showering, working it through the ends and then running my hands with the leftover remmants of the serum through the rest of the hair. It makes my hair smell amazing, and leaves it soft and shiny. For a frizz-free finish I pop another tiny dab in my hands (about half a 5 cent piece), then rub my hands together and just work it over my whole head very lightly after I finish blow-drying... and voila'! Soft, shiny hair that smells divine. But wait, there's more! If you wash your hair at night and need to re-style in the morning, just pop a little into a spray bottle mixed with water and shake it up really well. You can use this to wet your hair down before re-styling, or just as a de-tangler. But, that's not all! Silk Therapy is also amazing for wigs and hair extensions (both human hair and synthetic). Price-wise it's not the cheapest product, but I think it's great value, you really don't need to use much, so it goes a long way.
M**A
Bon produit
Très bon pour les cheveux secs et mettre le produit avant de passer le fer à plat
T**A
Bio Silk!
Very high quality but the product Bottle is quite small but it’s smells nice and makes your hair silky and soft. Perfect for after straightening your hair to put on the ends.
N**L
Excellent stuff
My wife use it more than 15 years and it's excellent
I**L
The best hairoil.
The best ever.
Trustpilot
2 weeks ago
2 weeks ago