Strength Booster
- Description
- Celebrities Using IN COMMON
Amplify Your Conditioner or Rinse-out Mask with a Boost of Powerful Strength
For Weak, Damaged Hair
Add an extra layer of strength to hair weakened by damage with this in-shower Booster, applied before your everyday conditioner or rinse-out mask. The formula’s unique blend of fortifying ingredients powerfully + instantly reinforces hair fibers, prevents split ends + restores hair that's been damaged from daily styling, over-processing + chemical treatments.
Hair care in common with celebrities? Yes! A-listers like Emma Roberts, Hilary Duff, Julianne Hough and Ashlee Simpson use IN COMMON to keep their hair healthy at home.
Don't love it? No worries.
60 Day returns—guaranteed.
More Info
Your routine-boosting 2nd step—after shampoo + before conditioner or rinse-out mask:
Boosters perform best on freshly cleaned hair to ensure the active ingredients can penetrate the hair shaft. To seal in the treatment + deliver optimal results, layer your conditioner or rinse-out mask of choice directly on top of the Booster. Learn more about how Boosters work.
Elevate the co-wash experience with Strength Booster:
Reinvigorate your co-washing experience with Strength Booster on no-shampoo days. Simply apply the Booster + then layer your conditioner of choice on top. Read more about co-washing here.
How to Use
After cleansing with your shampoo of choice, gently remove excess water. Generously spray Strength Booster from mid-shaft to ends; don’t rinse out! Layer your choice of conditioner or rinse-out mask over top. Comb throughout. Let activate for a minimum of 30 seconds (longer if needed) + then rinse thoroughly.
Key Ingredients
Custom Care Complex™
A unique blend of two silk proteins + avocado oil forms a flexible net around each hair fiber, helping to reinforce tensile strength + instantly repair damage from the inside out. Learn More
Babassu Oil
Once Brazil’s best kept secret, this powerful oil provides intense conditioning + reparative properties. The result: incredible shine, enhanced elasticity + less breakage.
Blueberry Extract
This natural antioxidant floods hair with essential vitamins such as vitamin A, B5, C, + E to visibly restore hair health + strengthen hair fibers against future damage.
Rose Extract
A natural frizz tamer, Rose Extract helps to heal + hydrate hair, increasing manageability + shielding hair against further dehydration.
