Name: Cash In Repair Serum — 1 Serum
Brand: IGK Hair
SKU: G1REPSER01B1
Price: 36.00 USD
Availability: InStock

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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.

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.

who it’s for

SAFE FOR ALL HAIR TYPES INCLUDING COLORED AND CHEMICALLY TREATED.

STRAIGHT
WAVY
CURLY
COILY

KEY INGREDIENTS

VEGAN SILK EXTRACT
strengthens and protects
BOND BUILDING TECHNOLOGY
repairs and reseals damaged hair
BAOBAB + AMLA OIL
moisturize and help seal cuticle

frequently asked questions

What is your Shipping Policy?

Ground shipping is free on orders $50+ in the continental United States. Currently, our website only accommodates shipments within the contiguous United States: we do not ship to Alaska, Hawaii, and the U.S. Virgin Islands. We work with various shipping carriers and we kindly ask that you anticipate 3 to 8 business days for shipping. For international shipping requests please email [email protected].

What is your Return Policy?

IGK Hair offers free returns* and/or exchanges for IGK Hair products within 30 days of product receipt for item(s) purchased on igkhair.com. Products purchased from our salon and retail partners should be returned to the original place of purchase. Please note that returned merchandise must be unopened or gently used. Shipping fees are non-refundable. To start your return or exchange visit our Returns Center. You'll need the order number and email address associated with your purchase, or your shipping zip code. Please note if there is a price difference to be paid in an exchange an invoice is emailed. The invoice must be paid before the exchange order is released. If you have used Afterpay as a payment method, please be aware that the processing times may be longer.
If you have any further questions, please contact our client services at [email protected] with your order number mentioned in the subject line.

*exclusions apply to our free return policy

Can I change how often my subscription arrives?

Yes! We are committed to the highest levels of service for our subscribers. All subscribers can change the frequency of a subscription at any time by logging into your account and clicking MANAGE SUBSCRIPTION on bottom left corner.

Overall rating: 4.4751244 / 5 from 402 reviews.

AI Generated Review Summary

Cash In Repair Serum significantly reduces breakage and repairs damage, providing softer, shinier hair with long-lasting results. Customers appreciate its heat protection and instant effects, though some had issues with their orders.

Summary topics

Visible Improvement: 3%
Hair Appearance: 36%
Hair Feel: 14%
Repair Results: 4%
Product Smell: 20%

Review topics: ["size","results","protection","smells","weight","feel","formula","line","look","bottle","hair","order","customer service","difference","works","serum","igk","shine","ends","frizz","split ends","heat protectant","leave","repair","moisture","tools","grail","help","primer","damage"].

Review highlights

"It’s smells so good and my hair looks great!" — Trish S.
"My hair looks and feels great." — Tammi V.
"This product is so lightweight and makes my hair feel so silky and smooth!" — Melissa T.

Reviews

Excellent product

"Excellent products that works very well on damaged hair."

— Timothy G. (5/5)

"I love all of the IGK products. This Cash In serum has really helped strengthen my hair."

— Lisa (5/5)

Cash In Repair Serum

"I love how it smooths my hair and takes away the loose ends and fly aways"

— Violet F. (5/5)

"Instantly mends split ends, non greasy, non heavy - leaves hair soft"

— Madeline (5/5)

Newest purchase for my hair

"Pretty much love it but it is just never enough to cover my damaged hair. Please make container larger."

— Jennifer H. (5/5)

Works Amazingly!

"I absolutely love this stuff! Smells wonderful and doesn’t irritate my skin as I have psoriasis and dermatitis. I always try to educate my clients on how to use it properly and effectively. Everything on one of them absolutely adores it. It’s only a few complaints but them turning out it was other products that they were using and once those other products were gone and got them on the right path they finally got to see how amazing this stuff actually is!"

— Mckenzie D. (5/5)

"Love this serum. Makes my hair feel silky"

— kimberly (5/5)

"Inlove how my hair looked so much more healthy before using this product"

— Gina (5/5)

No because I still have not received my order

"I have yet to receive my order yet this is crazy"

— Big M. (1/5)

Awesome

"Love the smell. Great product!"

— Christie H. (5/5)

Q&A

How often can I use the hair serum??: For the best results, we recommend applying Cash In to clean, damp hair. Its lightweight formula makes this product great for use between wash days. Use a small amount when applying to dry hair.
How frequently can this be used without causing excessive buildup or damage?: Thank you for your question! The color masks last approximately 10 washes, with some variance depending on the shade and your hair. I hope this is helpful!
Does this make hair greasy or oily?: Cash In features a lightweight formula that is suitable for all hair types! It should not contribute to a heavy or greasy feeling in the hair. For best results, we recommend applying Cash In to clean, damp hair as a first step before following with other styling products. You can also use a small amount on dry hair to soften and seal ends between washes!
Are their parabens in this product?: You can absolutely use both! If you plan to use with the Good Behavior Smoothing Spray or Blowout Balm, we recommend applying mousse first, then following with either the spray of balm. If you plan to use it with our Good Behavior 4-in-1 Prep Spray, we recommend first applying the prep spray, then following with other styling products, like Big Time.
Does it work on extensions?: Absolutely! The shampoo and conditioner each offer violet toning pigments and can be used individually alongside any other favorite shampoo or conditioner.