Living Proof
Perfect hair Day (PhD) Hydrating Conditioner
$78.00get it for $74.10 (5% off) with Auto-Replenishor 4 payments of $19.50 with 
or 
or 
Standard size
Value size
Refill size
Mini size
Highlights
Good for: Damage
All Hair Types
Clean at Sephora
Good for: Dryness
Without Silicones
Increases ShineAbout the Product
Item 2841930
What it is: A hydrating conditioner 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 conditioner is formulated with Sili-CLONE™ HairTech, a breakthrough mimicry tech that feels like silicone, but makes hair better with every wash. Engineered to gently condition while providing long-lasting hydration and shine for silkier, healthier-looking hair. Perfect for dry, dull, and damaged hair.
Fragrance Description: Crisp, juicy, and sparkling.
Clinical Results: Based on a Perfect hair Day™ Shampoo and Perfect hair Day™ Conditioner consumer use study:
-Results showed long-lasting hydration and shine
Clean at Sephora
Our commitment to offering formulas that go beyond regulatory standards to avoid controversial ingredients without sacrificing effectiveness.
Water/Eau/Aqua, Cetearyl Alcohol, Behentrimonium Chloride, Cetyl Alcohol, C13-15 Alkane, Polyglyceryl-3 Betainate Acetate, Jojoba Esters, Lauryl/Myristyl Polyricinoleate, Linoleamidopropyl Dimethylamine Dimer Dilinoleate, Polyglycerin-3, Helianthus Annuus (Sunflower) Seed Wax, Polyglyceryl-3 Methylglucose Distearate, Isopentyldiol, Polyricinoleic Acid, Guar Hydroxypropyltrimonium Chloride, Glycerin, Sodium PCA, Caesalpinia Spinosa Gum, Hydroxyethylcellulose, Hydroxypropyl Methylcellulose, Fragrance/Parfum, Citric Acid, Hydroxyacetophenone, Caprylyl Glycol, Ethyl Lauroyl Arginate HCI, Limonene, Hexyl Cinnamal, Linalool, Citronellol
-Start with Perfect hair Day Shampoo, then apply Perfect hair Day Conditioner.
-Spread through hair and rinse.
Recycling Instructions:
-Bottles are ready for recycling. Made of 50 percent post-consumer recycled (PCR) materials.
Similar Products
($139.00 value)
You May Also Like
Living ProofPerfect hair Day (PhD) Hydrating Shampoo$17.00 - $78.00136
Sephora FavoritesWash Care Favorites$45.00 ($139.00 value)11
ILIAEye Stylus Shadow Stick - Long-Lasting Cream Eyeshadow$32.00453
Supergoop!PLAY Everyday Lotion SPF 50 Face & Body Sunscreen$24.00 - $68.001.2K
amikaPerk Up Talc-Free Dry Shampoo$15.00 - $40.00 ($51.00 value)2.8K
K18 Biomimetic HairscienceMini Leave-In Molecular Repair Hair Mask$29.004.8K
Act+AcreClarifying Hard Water Shampoo$32.0045
bareMineralsOriginal Loose Talc-Free Powder Mineral Foundation SPF 15$39.0019.8K
Bumble and bumbleHairdresser’s Invisible Oil Heat Protectant Leave In Conditioner Primer$16.00 - $34.003.4K
freshSugar Advanced Therapy Treatment Lip Balm$28.003.1K
Sorry, no images match the applied filters.
Recently Viewed
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.®