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Heitman, B. (2026, October 30). BioSilk’s popular Silk Therapy Leave-In Treatment is 72% off today. NBC News. https://www.nbcnews.com/select/shopping/biosilk-silk-therapy-leave-in-treatment-deal-of-the-day-2026-rcna606562
Heitman, Bethany. “BioSilk’s popular Silk Therapy Leave-In Treatment is 72% off today.” NBC News, 30 Oct. 2026, https://www.nbcnews.com/select/shopping/biosilk-silk-therapy-leave-in-treatment-deal-of-the-day-2026-rcna606562.
Heitman, Bethany. “BioSilk’s popular Silk Therapy Leave-In Treatment is 72% off today.” NBC News, October 30, 2026. https://www.nbcnews.com/select/shopping/biosilk-silk-therapy-leave-in-treatment-deal-of-the-day-2026-rcna606562.
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BioSilk's Silk Therapy Leave-In Treatment is currently 72% off on Amazon, reducing the price from $61 to $17. The product, which debuted in 1986, has maintained popularity with over 20,000 bottles sold in the last month alone and more than 23,000 five-star ratings on the platform. Known for its silk protein formula that smooths frizz, adds shine, and prevents split ends across all hair types, including color-treated hair, the treatment is praised by users who find it effective even for fine, curly, or textured hair. NBC Selected commerce editor Bethany Heitman recommends this deal as a good time to try the long-standing product or stock up if you are already a fan.