Cash In

Instant Repair Serum

Rated 5.0 out of 5
Based on 3 reviews

Cash In

Instant Repair Serum

Rated 5.0 out of 5
Based on 3 reviews
Significantly reduce breakage and repair damage at the source with this high-powered restorative serum. Boosted with clean, clinically-proven Vegan Silk and Biomimetic Bond-Building Technology to reduce breakage and increase strength from the inside out. A highly-concentrated, silicone-free serum that provides 11x softer* strands, with 88% split end sealing and 450°F degree heat protection.
Full Size - $20.40
Size: 50 ML / 1.7 FL. OZ.

What it is

This clinically-proven treatment serum significantly repairs damage and reduces breakage.* Concentrated, lightweight formula features biomimetic bond-building technology to instantly moisturize, mend split ends, provide softness and shine, and protect from heat damage.

Key Benefits

  • Color Care Color Safe

    Color Care Color Safe

  • Heat Protectant

    Heat Protectant

  • Lightweight Weightless

    Lightweight Weightless

  • Safe For Chemically Treated Hair

    Safe For Chemically Treated Hair

  • Shine


How to use

Apply generously to hair. Follow with styler.

Key Ingredients

  • Vegan Silk Extract

    Vegan Silk Extract

    vegan protein derived from fermentation biotechnology that supports hair strength by forming a physical yet breathable layer of protection and support (Ingredient sourced from biotechnologically derived silk proteins.)
  • Biomimetic Bond Building Technology

    Biomimetic Bond Building Technology

    naturally-derived peptide (aka a protein building block) that repairs and reseals damaged hair, restoring the look and feel of shiny, smooth, healthy tresses.
  • Baobab Oil

    Baobab Oil

    extracted from the “Tree of Life,” this oil restores moisture, strength, and reflective shine.
  • Amla Oil

    Amla Oil

    naturally derived from Indian gooseberry for deep moisture and to help seal the cuticle.

Products that give you the look you want with minimal effort:

  • Vegan
  • Cruelty free
  • Gluten free
  • No parabens or sulfates
  • UV and heat protection
  • Conditioning and color safe
  • Formulated without mineral oil

- Instantly repairs and protects against breakage*
- Boosted with Biomimetic Bond-Building Technology
- Significantly repairs damage from mechanical, chemical, and heat damage
- Hair feels 11x softer*
- Seals 88% of split-ends and protect from 450°F heat**
*When used as a system of Pay Day Instant Repair Shampoo, Conditioner and Cash In Instant Repair Serum vs control

Full list of ingredients

  • Water (Aqua/Eau), Propanediol, Hydroxyethylcellulose, Dicaprylyl Ether, Adansonia Digitata Seed Oil, sr-Spider Polypeptide-1, Orbignya Oleifera Seed Oil, Salvia Hispanica Seed Extract, Brassica Campestris (Rapeseed) Seed Oil, Emblica Officinalis Fruit Extract, Sesamum Indicum (Sesame) Seed Oil, Cetearamidoethyldiethonium Succinoyl Hydrolyzed Pea Protein, Opuntia Ficus-Indica Fruit Extract, Sodium Formate, Saccharomyces Cerevisiae Extract, Phenoxyethanol, Decyl Glucoside, Heptyl Glucoside, Glyceryl Oleate, Polyquaternium-73, Cetrimonium Chloride, Panthenol, Ethylhexylglycerin, Glycerin, Citric Acid, Benzoic Acid, Tetrasodium Glutamate Diacetate, Leuconostoc/Radish Root Ferment Filtrate, Sodium Benzoate, Heptanol, Tocopherol, Sodium Hydroxide, Sodium Glycolate, Potassium Sorbate, 1,2-Hexanediol, Fragrance (Parfum), Caprylyl Glycol


average rating 5.0 out of 5
Based on 3 reviews
  • 5 Stars
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100% of reviewers would recommend this product to a friend
3 Reviews
Reviewed by Alyssa T.
Verified Buyer
I recommend this product
Age Range
35 - 44
Hair Description
  • Chemically-Treated
  • Color-Treated
  • Thick
  • Damaged
  • Wavy
Product Standouts
  • Conditions Well
  • Good For Dry Hair
  • Strengthens
  • Smooths
  • Smells Great
Rated 5 out of 5
Review posted

Love It

First of all, it smells amazing. Sometimes scents really turn me off of products, this isn’t one of those. It’s not overwhelming. Secondly, it works really well from what I can tell. My hair is umm damaged, chronic hot tool and bleach user here… it has helped keep it smooth and feeling stronger. It’s not quite a a serum like the cry baby is but once you rub it in your palms it thins out so you can use it similarly.

Rated 5 out of 5
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Reviewed by Elizabeth W.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

New favorite!

New hair in a bottle! Love it!

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Reviewed by Juliet
I recommend this product
Rated 5 out of 5
Review posted


This product is fantastic. As a hairdresser I’m always looking for products that leave my clients hair feeling healthier and more smooth than when they came in, and this is the product to do that! The directions say to apply generously and WOW what’s amazing is you will not over saturate the hair! Smells fantastic, makes hair so soft. Highly recommend!

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