Perfect hair Day™
Night Cap™ Overnight Perfector

An easy-to-use weightless overnight treatment that works on damp or dry hair to provide up to one week of more shiny, vibrant, manageable hair overnight.

Full 118 ml

Currently out of stock.

Key benefits

  • Instantly makes hair smoother, softer, and more manageable
  • Fortifies hair by creating an invisible protective shield around each strand
  • Seals the cuticle, enhancing shine and color vibrancy
  • Overnight results that last up to 5 shampoos

Formulated without

Formulated without


Water/Eau/Aqua, Octafluoropentyl Methacrylate, Ethylhexyl Stearate, Propylene Glycol Dibenzoate, PPG-3 Benzyl Ether Myristate, Isohexadecane, Quaternium-91, Isoamyl Laurate, Polyquaternium-4, Hydroxypropyl Guar, Hydrogenated Castor Oil/Sebacic Acid Copolymer, Isododecane, C13-15 Alkane, C10-40 Isoalkylamidopropylethyldimonium Ethosulfate, Linoleamidopropyl Ethyldimonium Ethosulfate, Cetearamidoethyl Diethonium Hydrolyzed Rice Protein, Fragrance/Parfum, Oryza Sativa (Rice) Seed Protein, Oryza Sativa (Rice) Extract, Phytic Acid, Hydroxyethylcellulose, Glycerin, Sodium PCA, PCA Ethyl Cocoyl Arginate, Arginine, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Dipropylene Glycol, Phenoxyethanol, Ethylhexylglycerin, Caprylyl Glycol, Glycolic Acid, Aspartic Acid, Sodium Lactate, Citronellol, Citral, Limonene, Linalool

Living Proof is dedicated to maintaining the accuracy of the ingredient lists on this website. However, because ingredients are subject to change, we cannot guarantee that these lists are complete, up-to-date and/or error-free. For an accurate listing of ingredients in each product, please refer to your product packaging.

Highlighted ingredients.

  • Amino acid blend: Mimics the amino acids found naturally in hair and penetrates into the cortex to keep hair smooth, soft, and supple.
  • Time-release conditioners and antioxidants: Ensure hair is properly hydrated, remains strong and protected from environmental assaults.
  • Healthy Hair Molecule + a powerful cuticle smoothing technology: Reinforce the cuticle seal to withstand multiple shampoos, leaving the cortex and color pigment protected and the cuticle smooth, shiny, and vibrant.
  • Biomimetic lipids: Engineered to mimic lipids found naturally in the F-layer, allowing it to fully function while also keeping hair protected and frizz free.

Transform hair to be healthier looking.

Take me through it

Transform hair to be healthier looking.

Take me through it

Step One


This sulfate-free shampoo removes buildup and repels dirt and oil. Translation? Less washing, more compliments.

Shampoo Full 236 ml hi-res

Step Two


This weightless perfecting conditioner smooths, polishes, and protects hair—all without heavy silicones that can cause buildup.

Conditioner Full 236 ml hi-res
Style + Treat

Step Three

Style + Treat

This genius multi-tasker styles and treats hair in one simple step, adding smoothness, volume, conditioning, strengthening, and polish.

5-in-1 Styling Treatment Full 118 ml hi-res

Step Four


This breakthrough formula cleans and cares like a rinse-out shampoo, eliminating oil and sweat while leaving hair with just-washed softness and shine.

Advanced Clean Dry Shampoo  hi-res
Shampoo Full 236 ml hi-res


Conditioner Full 236 ml hi-res


5-in-1 Styling Treatment Full 118 ml hi-res

5-in-1 Styling Treatment

Advanced Clean Dry Shampoo  hi-res

Advanced Clean Dry Shampoo

Shampoo, conditioner, styler, treatment

Haircare quiz

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  • Air dry
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Industry Recognition


It’s formulated to treat most hair types. Think of it as beauty sleep for your hair. If you have specific concerns:

  • If damage is your primary concern, use Restore Mask, Instant Protection or Instant Repair to undo the damage. Add Night Cap to help keep your hair looking healthy.
  • If frizz is a major concern, use No Frizz Leave-In Conditioner to help block humidity and fight frizz. Add Night Cap to help keep your hair looking healthy.


Night Cap is keratin and straightening treatment safe. Keratin and straightening treatments are damaging to hair. Night Cap is a perfect product for anyone seeking to keep hair looking and feeling great, particularly after having a straightening treatment.

Night Cap is also sodium-chloride free so it will not affect the results of your treatment.

Night Cap lasts through multiple shampoos, including when you use a clarifying shampoo.

In general, we recommend not over-using clarifying cleansers, as they strip hair, adding to the cycle of damage.

We recommend using Night Cap the evening after your color service at a salon.

If you color your hair at home, apply the color according the manufacturer’s directions. Then follow with Night Cap.

No, it is formulated to not affect your color.

We recommend not applying Night Cap over a silicone or oil-based serum because they minimize the ability for Night Cap to soak into your hair. We recommend if you have a lot of styling product in your hair, to brush your hair to help remove any residue before applying Night Cap.

If you wash your hair in the evening, we recommend you apply Night Cap prior to any other stylers or leave-ins to ensure the greatest benefits from Night Cap. You may not find the additional stylers or leave-ins necessary on the nights you apply Night Cap.

The benefits will be the same regardless if you leave it in or rinse/shampoo it out of your hair the next morning. Night Cap’s benefits build over time so do whatever works best for your routine.

You've probably heard a lot about sulfates and generally think they are bad for hair.

You should watch out for sulfates in Shampoos as when they are used in lathering, cleansing products they can strip hair of its natural surface oils making it feel rough, dry and brittle. Sulfates can also strip the scalp of its natural oils, leading to dryness and irritation. Examples of commonly used sulfate ingredients that can be stripping include: Sodium Lauryl Sulfate, Sodium Laureth Sulfate, Ammonium Lauryl Sulfate, Sodium Laureth Sulfate. You should watch out for these in shampoos.

Sulfates do not inflict damage on hair when used in conditioners or treatments. When used in these products they actually help make hair smoother, softer and visibly healthier.

Sulfates in conditioners and treatments do not damage chemical treatments or color. Characterizing them as not good for your hair in these types of products is incorrect.