Some beauty products come and go with the trends.Others stick around for decades because they work that well.
BioSilk Silk Therapy Original falls into that latter category, and right now it’s 72% off on Amazon.This leave-in treatment debuted in 1986 and today it’s still praised by shoppers.
It smoothes frizz, adds shine to hair and helps prevent split ends, and it works on all hair types, including color-treated hair.With the major price drop, it’s a good time to try the product your mom (and maybe even your grandmother) swore by, or to stock up if you already love it.Deal of the dayBioSilk Silk Therapy Original Treatment26,242 Amazon Reviews$16.92$61.00AmazonNow 72% off$61.00CHI$61.00JCPenneyBioSilk Silk Therapy Original is a leave-in treatment that has been on salon and bathroom shelves since 1986.
Its formula uses silk proteins, and it’s designed to fill gaps in the hair cuticle so strands look smoother, shinier and less frizzy, according to the brand.It also helps prevent split ends and breakage.
The lightweight treatment works on all hair types, including fine, curly, textured and color-treated hair.It’s sulfate-free, paraben-free and cruelty-free.Based on reviews, it also works across all hair types.
One shopper wrote that their daughter’s 4C curls had been damaged by high-heat styling tools, and after a stylist used Silk Therapy on her, they “couldn’t believe how healthy her hair was after one use.” Another reviewer who said they have thin, damaged hair wrote that the treatment gave their hair “some weight and [it] looked thicker, smoother, and shinier.” At this price, you can stock up for yourself and also grab a few as stocking stuffers so the whole family isn’t using yours.Why this sale is worth it72% off ($17 vs.
$61)20,000 bottles bought in last month aloneMore than 23,000 five-star ratingsRelatedselectedselectedThe 17 best shampoos for every hair type and budget in 2025Want more from NBC Selected? Sign up for our newsletter...