Living Proof
Perfect hair Day (PhD) Hydrating Shampoo
$34.00get it for $32.30 (5% off) with Auto-Replenishor 4 payments of $8.50 with 
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Refill size
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Highlights
Good for: Damage
Clean at Sephora
Good for: Dryness
Without Silicones
Increases Shine
All Hair TypesAbout the Product
Item 2841856
What it is: A hydrating shampoo that keeps hair cleaner and healthier for longer, powered by breakthrough Sili-CLONE™ HairTech.
Hair Texture: Straight, Wavy and Curly
Hair Type: Fine, Medium, and Thick
Hair Concerns:
- Damage, Split Ends, and Breakage
- Dryness
- Shine
Key Benefits:
- 72-hour hydration with every wash
- Long-lasting shine
- Soft, manageable hair
Highlighted Ingredients:
- Sili-CLONE™ HairTech: Engineered to mimic the five key benefits of silicone—detangling, slip, sleekness, conditioning, and shine—while delivering fuller-looking hair.
Ingredient Callouts: This product is cruelty-free.
What Else You Need to Know: This hydrating shampoo is formulated with Sili-CLONE™ HairTech, a breakthrough mimicry tech that feels like silicone, but makes hair better with every wash. Engineered to gently cleanse while providing long-lasting hydration and shine* for silkier, healthier-looking hair. Perfect for dry, dull, and damaged hair.
*Based on Perfect hair Day™ Shampoo + Conditioner consumer use study.
Fragrance Description: Crisp, juicy, and sparkling.
Clean at Sephora
Our commitment to offering formulas that go beyond regulatory standards to avoid controversial ingredients without sacrificing effectiveness.
Water/Eau/Aqua, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Sodium Methyl Cocoyl Taurate, Glycol Distearate, Decyl Glucoside, Sodium Cocoyl Glycinate, Maltooligosyl Glucoside, Sorbitan Laurate, Sunfloweroyl Methylglucamide, Linoleamidopropyl PG-Dimonium Chloride Phosphate, Bethenyl Alcohol, Propylene Glycol, Glyceryl Oleate, Coco-Glucoside, Hydrogenated Starch Hydrolysate, Polyquaternium-47, Guar Hydroxypropyltrimonium Chloride, Tetrasodium Glutamate Diacetate, Sorbeth-230 Tetraoleate, Acrylates/Beheneth-25 Methacrylate Copolymer, Fragrance/Parfum, Sodium Hydroxide, Sodium Benzoate, Hydroxyacetophenone, Limonene, Hexyl Cinnamal, Linalool, Citronellol.
-Apply to wet hair. Lather. Rinse. Follow with Perfect Hair Day™ Conditioner.
Recycling Instructions:
-Bottles are ready for recycling. Made of 50 percent post-consumer recycled (PCR) materials.
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We solve the toughest beauty challenges with science and patented technology originating from MIT. Our founders are hair stylists and biotech scientists who were fed up with the limitations of conventional products; hence they set out to create results you can see from across the room. Twenty patents, over 50 products and more than 150 awards later, we have countless love letters thanking us for changing lives in both big ways and small. We are the science. You are the Living Proof.®