Cash In Repair Serum

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.
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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
    Shine
Who it's best for
  • Straight
  • Wavy
  • Curly
  • Coily
How to use
Apply generously to clean damp hair. Can also be used on the ends of dry hair to seal help soften and seal split ends between washes.
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.

- 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

  • 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
Videos
average rating 4.2 out of 5
Based on 38 reviews
  • 5 Stars
    27 Reviews
  • 4 Stars
    2 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    4 Reviews
  • 1 Star
    4 Reviews
76% of reviewers would recommend this product to a friend
Results
Rated 4 out of 5
Customer photos and videos
38 Reviews
Reviewed by Isabel C.
Verified Buyer
I recommend this product
Age Range
55 - 64
Hair Description
  • Straight
Rated 5 out of 5
Review posted

Ends

I just simply love love this prduct. I absolutely love tbis product line!!! There is nothing in this line I have brought that has disappointed me.

Love them all!!!!

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Results
Rated 5 out of 5
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Reviewed by Heather R.
Verified Buyer
I recommend this product
Age Range
45 - 54
Hair Description
  • Thin
  • Wavy
Rated 5 out of 5
Review posted

Great

Made my ultra damaged hair feel great!

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Results
Rated 5 out of 5
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Reviewed by Theresa C.
Verified Buyer
I recommend this product
Age Range
55 - 64
Hair Description
  • Thin
  • Straight
  • Dry
Product Standouts
  • Strengthens
  • Smooths
  • Good For Dry Hair
  • Adds Shine
  • Conditions Well
Rated 5 out of 5
Review posted

Fantastic.

This product has made my heart silky and strong. I’m 63 and my hair feel like it did in highschool

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Results
Rated 5 out of 5
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Reviewed by Susan L.
Verified Buyer
I recommend this product
Age Range
55 - 64
Hair Description
  • Curly
  • Coarse
  • Thick
Product Standouts
  • Softens Hair
  • Good For Dry Hair
  • Smooths
  • Reduces Frizz
Rated 5 out of 5
Review posted

Love this serum

It really helps tame the flyaways and split ends!

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Results
Rated 5 out of 5
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Reviewed by Monica H.
Verified Buyer
I recommend this product
Age Range
45 - 54
Rated 5 out of 5
Review posted

LOVE

In AWE of how well it worked for repairing my ends!

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Results
Rated 5 out of 5
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Reviewed by ellen r.
Verified Buyer
I recommend this product
Age Range
55 - 64
Hair Description
  • Coarse
Product Standouts
  • Adds Shine
  • Good For Dry Hair
  • Strengthens
Rated 5 out of 5
Review posted

Great

Love the product love love love

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Results
Rated 4 out of 5
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Reviewed by Serena P.
Verified Buyer
I recommend this product
Age Range
45 - 54
Hair Description
  • Wavy
  • Coarse
  • Color-Treated
  • Damaged
  • Dry
Product Standouts
  • Conditions Well
  • Adds Shine
  • Softens Hair
  • Detangles
  • Good For Dry Hair
Rated 5 out of 5
Review posted

Very good product

I like the cash in repair serum. I had very damaged hair and saw a great difference after using this product consistently for 2 weeks. Thanks for making a great product🏆🎖

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Results
Rated 5 out of 5
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Reviewed by Ursula S.
Verified Buyer
I recommend this product
Age Range
55 - 64
Hair Description
  • Thin
  • Damaged
  • Chemically-Treated
  • Color-Treated
Product Standouts
  • Reduces Frizz
  • Softens Hair
  • Smells Great
Rated 5 out of 5
Review posted

AMAZING!

Wonderful product! My new favorite. Does what it says & smells great too.

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Results
Rated 5 out of 5
Was this helpful?

IGK Hair

Hi Ursula! Thanks for leaving us a review!

Reviewed by Leslie S.
Verified Buyer
I recommend this product
Age Range
45 - 54
Hair Description
  • Thick
  • Coarse
  • Dry
  • Color-Treated
  • Damaged
Product Standouts
  • Smells Great
  • Softens Hair
Rated 5 out of 5
Review posted

Nice

Love the smell! Not greasy.

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Results
Rated 4 out of 5
Was this helpful?

IGK Hair

Thank you for your feedback, Leslie!

Reviewed by Adria w.
Verified Buyer
I recommend this product
Age Range
35 - 44
Hair Description
  • Wavy
  • Chemically-Treated
  • Dry
Rated 5 out of 5
Review posted

Great product

Absolutely love this product. Definitely one of the best hair products I've ever used.

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Results
Rated 5 out of 5
Was this helpful?

IGK Hair

Thank you for your feedback, Adria!

CRUELTY FREE
No animals were harmed. Ever.
Gluten-Free
No traces of wheat anywhere.
Vegan
No harsh, harmful chemicals.
CRUELTY FREE. GLUTEN-FREE. VEGAN