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  • Blake Brown Fundamental Strengthening Hair Mask by Blake Lively, positioned in a wet shower with warm tones to highlight its luxurious texture.
  • Fundamental Strengthening Mask
  • Fundamental Strengthening Mask
  • Fundamental Strengthening Mask
  • Fundamental Strengthening Mask
  • Fundamental Strengthening Mask
  • Fundamental Strengthening Mask
  • Fundamental Strengthening Mask
  • The Blake Brown haircare line does not formulate with SLS/SLES, Silicones, Parabens, Phthalates, Synthetic Dyes, and Mineral Oils. We're proudly vegan, cruelty-free, and color safe.

Fundamental Strengthening Mask

Sandalwood Vanille

226 ML / 8 Fl OZ

Enriched with plant proteins, this formula reduces breakage and restores the appearance of damaged hair. Its lightweight formula effortlessly smooths and detangles, leaving your strands ready to style.

Best when combined with our Strengthening Shampoo.

$ 20.00
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At Blake Brown, we believe healthy hair is the foundation of iconic beauty. All of our products are vegan
Minimalist vegan leaf icon over a background of shiny, reddish-brown hair—indicating that Blake Brown haircare products are vegan and made without animal-derived ingredients.
cruelty-free
Pale yellow Leaping Bunny logo over a background of sleek, healthy black hair—signifying that Blake Brown haircare products are certified cruelty-free and never tested on animals.
and color safe
Close-up of rich, color-treated hair with a pale yellow artist palette icon overlay, symbolizing Blake Brown's color-safe haircare.

Proven Performance

Based on consumer testing:

89%

Agree hair feels manageable and soft​

87%

Agree hair feels replenished​

85%

Agree hair feels smooth

In a blind consumer study involving 46 participants who used the Strengthening Mask over 7 days.

Hair that looks, feels, and smells iconic.

Efficacious Ingredients

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Chia Seed Extract

Helps retain moisture and boost shine

Hydrolyzed Quinoa

Recognized for its ability to retain moisture and prevent breakage

Safflower Seed Extract

Known to leave hair feeling soft and more manageable

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