skip to main content
ULTA
  • Home
  • / Hair
  • / Treatment
  • / Oils & Serums
  • / Keratin Repair Repair Serum Keratin Anti-Breakage Sealant
AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant

AG Hair

Keratin Repair Repair Serum Keratin Anti-Breakage Sealant

Item #: 2255217

Ask a Question
AG's Keratin Repair Repair Serum Keratin Anti-Breakage Sealant is lightweight and instantly mends split ends, working overtime to reduce breakage and increase elasticity. Hair is left silky, glossy and irresistibly soft.

No salt. No PABA. No parabens. No gluten. No DEA. No animal testing.
Apply evenly through damp hair. Blow-dry or air dry for a soft, healthy finish.
Water/Aqua/Eau, Cyclopentasiloxane, PEG-12 Dimethicone Crosspolymer, Dimethiconol, Dimethicone Crosspolymer, Cetrimonium Chloride, Hydroxyethylcellulose, Cyclomethicone, Amodimethicone, Hydrolized Keratin, Trideceth-12, Phenoxyethanol, Caprylyl Glycol, Inulin Lauryl Carbamate, Panthenol, Cinnamidopropyltrimonium Chloride, Helianthus Annuus (Sunflower) Seed Extract, Calendula Officinalis Flower Extract, Lavandula Angustifolia (Lavander) Extract, Trifolium Pratense (Clover) Extract, Pinus Palustris Leaf Extract, Dianthus Cariophyllus Flower (Carnation) Extract, Butylene Glycol, Tetrasodium EDTA, Parfum/Fragrance, Red 40 (CI 16035), Yellow 5 (CI 19140).

Details+

How to Use+

Ingredients+

Reviews

Product Reviews

REVIEW SNAPSHOT®

by PowerReviews
AG HairKeratin Repair Repair Serum Keratin Anti-Breakage Sealant
 
4.7

(based on 28 reviews)

96%

of respondents would recommend this to a friend.

Pros

  • Effective (27)
  • Easy to use (25)
  • Smells great (22)
  • Lightweight (10)
  • Gentle (8)

Cons

No Cons

Best Uses

  • Dry/damaged hair (12)
  • Daily use (11)
  • Color-treated hair (9)
  • Frizziness/flyaways (8)
  • Women (5)
    • Reviewer Profile:
    • Budget shopper (8), Brand buyer (6), Beauty conscious (5), Product junkie (3), Survivalist / minimalist (3)
    • Hair Type:
    • Wavy hair (6), Straight hair (5)
    • My Beauty Routine Takes:
    • 10 minutes (6), 30 minutes (6), 1+ hour (3)

Reviewed by 28 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Love it! Would buy again!

By Alejandra

from Tucson,Az

About Me Professional Stylist

Verified Buyer

Pros

  • Easy To Use
  • Effective
  • Gentle
  • Smells great

Cons

    Best Uses

    • Color-treated Hair
    • Dry/Damaged Hair
    • Frizziness/Flyaways

    Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

    I follow up with this product after I use the AG Keratin Reconstructing Mask and also every time I shampoo. It makes styling easier and gives my hair a little boost of strength to get through styling, which I need since I overdid it with color processing this last time

    • Hair Type:
    • Wavy Hair
     
    5.0

    My new fave hair product

    By Dawn

    from Northport, AL

    About Me Product Junkie

    Verified Buyer

    Pros

    • Easy To Use
    • Effective
    • Gentle
    • Good Value
    • Smells great

    Cons

      Best Uses

      • Color-treated Hair
      • Frizziness/Flyaways
      • Normal Hair

      Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

      I have thin shoulder length hair and I was slightly afraid this product would be too much for my hair. Much to my surprise it works great. It makes my hair super soft and smells great. I have been using Redken Extreme leave in conditioner and this Keratin Repair Serum just took it's place.

      • Hair Type:
      • Straight Hair

      (1 of 1 customers found this review helpful)

       
      5.0

      Healthy hair - finally!

      By Karen S.

      from Plainfield, Il

      About Me Budget Buyer

      Verified Buyer

      Pros

      • Easy To Use
      • Effective
      • Lightweight
      • Smells Great

      Cons

        Best Uses

        • Daily Use

        Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

        Great product recommended by my stylist. I honestly don't know how I lived without this - oh, wait, I did but my hair was super dry and frizzy. Now my hair looks and feels healthy and shiny.

        • My Beauty Routine Takes:
        • 30 Minutes
         
        5.0

        I love this product.

        By Stacey

        from Coon Rapids MN

        About Me Budget Buyer

        Verified Buyer

        Pros

        • Easy To Use
        • Effective

        Cons

          Best Uses

          • Daily Use

          Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

          I have been using this product since December and there is a noticeable difference in my hair. It is almost back to a normal healthy state. I would recommend this product to anybody with dry brittle hair.

          • My Beauty Routine Takes:
          • 10 Minutes
           
          5.0

          Love this!

          By Shea

          from Oxford, MS

          About Me Budget Buyer

          Verified Buyer

          Pros

          • Easy To Use
          • Effective
          • Lightweight
          • Smells Great

          Cons

            Best Uses

            • Daily Use

            Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

            I have colored, naturally curly hair that LOVES to frizz. This product truly helps with frizz. I use it everyday and highly recommend it to everyone!

            • My Beauty Routine Takes:
            • 1+ Hour
             
            5.0

            amazing leave-in treatment

            By meg

            from NY, NY

            About Me Budget Buyer

            Verified Buyer

            Pros

            • Easy To Use
            • Effective
            • Lightweight
            • Smells Great

            Cons

              Best Uses

              • Daily Use

              Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

              After putting a small amount of this in and blowdrying my hair straight (my hair is wavy), my hair is SO soft and smooth. This was recommended to me by a stylist, and he wasn't wrong. Good value with a coupon or $ off, otherwise a little pricy. Still amazing either way though - would buy full price.

              • My Beauty Routine Takes:
              • 10 Minutes
               
              5.0

              Buy it!

              By Shea

              from Oxford, ms

              About Me Budget Buyer

              Verified Buyer

              Pros

              • Easy To Use
              • Effective
              • Lightweight
              • Love it
              • Smells Great

              Cons

              • None

              Best Uses

              • Daily Use

              Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

              I have colored, drynaturally curly hair, this product helps contain frizz. I can straighten my hair and this product leaves my hair soft and smooth.

              • My Beauty Routine Takes:
              • 1+ Hour
               
              5.0

              Made for me

              By Sugaree

              from Lancaster, CA

              About Me Budget Buyer

              Verified Reviewer

              Pros

              • Easy To Use
              • Effective
              • Good Value
              • Lightweight
              • Smells Great

              Cons

                Best Uses

                • Daily Use
                • Men
                • On-the-go
                • Women

                Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

                Wash and go hair

                • My Beauty Routine Takes:
                • 30 Minutes
                 
                3.0

                Not quite what I expected

                By Di

                from Pittsburgh, PA

                About Me Brand Buyer

                Verified Buyer

                Pros

                • Easy To Use
                • Effective
                • Good Value
                • Smells Great
                • Smooths Tangled Hair

                Cons

                • Too Much For Fine Hair

                Best Uses

                • Daily Use
                • Eliminates Breakage
                • On-the-go
                • Women

                Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

                I would buy this again, but recommend it for thicker and heavier hair. I use it when I spray too much hair spray on. It gets out the excess spray without breaking hair. It does make dull hair shine. But for fine hair you just have too use very little.

                • My Beauty Routine Takes:
                • 1+ Hour
                 
                5.0

                great product!!!

                By stephyb

                from derry, nh

                About Me Budget Buyer

                Verified Buyer

                Pros

                • Easy To Use
                • Effective
                • Lightweight
                • Smells Great

                Cons

                • Expensive For The Size

                Best Uses

                • Daily Use
                • Women

                Comments about AG Hair Keratin Repair Repair Serum Keratin Anti-Breakage Sealant:

                My hairdresser turned me on to this stuff and I just fell in love with it!!!

                • My Beauty Routine Takes:
                • 10 Minutes

                Displaying reviews 1-10

                Back to top

                Previous | Next »

                Q&A

                Product Q&A

                Do you have questions about this product?

                Get answers from in-house experts.

                2 Questions | 2 Answers
                Displaying questions 1-2
                • Q:

                  Can this be used as a Heat Protectant for hair that's flat ironed?
                  Asked on 7/10/2015 by Elaine from Redondo Beach, CA

                  1 answer

                  • Staff Expert

                    A:

                    AG Hair does not claim that the Keratin Repair Repair Serum Keratin Anti-Breakage Sealant has heat protectant properties. We recommend using either AG Hair Colour Care Deflect Fast-Dry Heat Protection (Item #: 2290214) or AG Hair Smooth Firewall Argan Shine & Flat Iron Spray (Item #: 2290234).

                    Answered on 7/13/2015 by Staff Expert from ULTA Beauty
                • Q:

                  Is it true that you can never use too keratin or can too much keratin mess up hair?
                  Asked on 12/19/2014 by Baker

                  1 answer

                  • Staff Expert

                    A:

                    From AG Hair:

                    KERATIN CHEMISTRY — WHY HAIR BREAKS:

                    There are numerous reasons why hair might break including mechanical (brushing, elastic bands), chemical (colouring, bleaching, hi-lighting, chlorine, salt) and environmental causes (UVA/UVB degradation). These processes harm the outer cuticle of the hair shaft leaving hair dry, brittle and prone to breakage.

                    Since keratin is the primary building block of the hair cuticle, introducing keratin back into the hair is the only way to repair it. Keratin penetrates the hair cuticle and bonds to the brittle, broken scales helping to restore strength and moisture, and prevent further damage.

                    The Keratin Repair category is formulated specifically with an abundant amount of keratin to make your hair visibly stronger, shinier and healthier with each use, and can be used daily as a reparative and preventative treatment. It is not possible to overuse keratin.

                    Answered on 12/19/2014 by Staff Expert from ULTA.com
                Displaying questions 1-2

                Do you have a question about this product?