Collagen Booster Intense Repair Serum

Return to Previous Page


What It Does:

● Reduces lines and wrinkles
● Firms and restores lost volume and elasticity
● Minimizes scarring and stretch marks
● Helps to heal acne and lessen the appearance of enlarged pores
● Smoothes uneven tone and texture
● Repairs and protects skin from environmental damage

Who It’s For:

All skin types wishing to maintain and restore collagen to the skin for a firmer, smoother, more youthfully healthy complexion at every age.

How It Works:

Apart from water content, the skin consists primarily of collagen. Collagen gives our skin the springy, plump, strong appearance that we associate with youth and health. However, once we reach our 30s, our bodies begin to produce less collagen year by year and the percentage of this loss speeds up as we age so we see less elasticity, more wrinkles, and sagging skin. At the same time that chronological aging produces collagen loss, we can also experience damage to collagen due to sun, diet, pollution, and inflammatory conditions like acne.

What’s the best way to keep collagen levels at their best so you see your most beautiful skin? Stimulate, condition, and protect. The Collagen Booster does all three. This lightweight serum promotes maximum collagen synthesis using hydrolyzed collagen, peptides, centella asiatica, and stabilized vitamin C. Hyaluronic acid and DMAE condition and strengthen skin’s collagen, and powerful antioxidants like resveratrol, phloretin, alpha lipoic acid, and green tea protect skin from damage due to stress, inflammation, and environmental factors.

Reviews (13)

13 reviews for Collagen Booster Intense Repair Serum

  1. Rated 5 out of 5


    I have been using this together with all the vit C and DMAE. Someone said my skin has gotten much better!

  2. Rated 5 out of 5


    I love this product! Other collagen products have made me breakout in the past but I havent had any problems with this or any kate ryan product. In just a few weeks I’ve seen a small scar already start to fill in. Cant wait to keep using.

  3. Rated 5 out of 5


    I love this collagen booster product, and using it with DMAE serum causes my wrinkly skin to be smoother! Definitely worth every penny!

  4. Rated 5 out of 5

    Charlotte F.

    I’ve been using KateRyan skincare about 5 months, and my skin feels wonderful, less lines visible on the forehead and around the eyes. I had collagen injections about 4 years ago and my face and skin felt fuller and smoother, but that only lasted about 3 years. Since being introduced to the vitamin c serum and the collagen booster serum, my skin and face are almost back to the fullness and smoothness I experienced with the injections, which by the way are painful and expensive. I’m very happy with all the products, DMAE serum, retinol serum and even the cleanser, which I wasn’t crazy about at first, but have definitely changed my mind! Keep doing what you’re doing, I’m a fan!

  5. Rated 5 out of 5


    Love this product! My skin feels & looks plumper the next morning. I love that it treats & helps to prevent further skin damage. I have hypersensitive skin with Rosacea & have not had any reactions. So thankful to have found KRS!!!

  6. Rated 4 out of 5

    Ann M

    I am really loving this product. It took 4-6 weeks for me to notice improvement, but now I cannot live without it. I use it at night since it can cause makeup to pill. You will not be disappointed with this product.

  7. Rated 5 out of 5


    Love KR Collagen Booster, it adds moisture to my skin, and seems to help my other products perform better. Love the KR collection.

  8. Rated 5 out of 5

    Laura W

    I am so happy at the end of the day when I get to massage this into my face — it just feels so good! The other day a casual friend told me that I was the only person she knew who gets significantly better-looking as time goes by… thanks for helping out with that, Kate Ryan 🙂

  9. Rated 5 out of 5

    Barbara Garneau Kelley

    The Kate Ryan products are top notch. I wish I could buy them all. The collagen booster is a must have though. I’m pleased KR is now carrying a daily moisturizer which I will get.

  10. Rated 5 out of 5


    I love it! I use it along with the KRS nighttime vitamin c serum just before going to bed and my skin has never looked better. Some of my acne scars have disappeared and my overall skin seems to be more elastic. I’m glad I found this company!

  11. Rated 5 out of 5

    Tricia Z.

    First, let me say that Kate Ryan Skincare is a gem of a company! The customer service is hands down the best I have ever experienced. I had a question about serum usage and it was answered personally and in-depth within 2 days! And the best part… Erica couldn’t respond to my email right away, but she sent me a personal email letting me know she had received it and would respond the next day.
    I love the Collagen Booster Intense Repair Serum. It makes my skin feel a little bit tighter and I’ve seen an improvement to a very old scar on my face. I’ve also seen an improvement in the fine lines on my forehead. I like knowing that I’m preventing future damage and already fighting the inevitable fine lines around my eyes and mouth. The biggest compliment, however, came from my husband who told me my skin was looking healthier (after 2 weeks of use of multiple Kate Ryan skincare products)!

  12. Rated 5 out of 5

    Melanie M

    I am beyond happy with all of the products I have purchased from this line. You are provided with a ‘recipe’ which makes it easy…and the recipe works! My skin looks more dewy and youthful, and refreshed.

  13. Rated 5 out of 5


    I have been using the Ultimate Hydration Collection along with the Vitamin C Collection for about a month. Yesterday my daughter looked at me from across the kitchen table and asked me if I was using something different on my face because my skin looked so smooth. Yes!!!

Add a review

Full Ingredients

Water, Seakelp (Lactobacillus/Kelp Ferment Filtrate) Bioferment, Sodium PCA, Magnesium Ascorbyl Phosphate, Propanediol, Punica Granatum (Pomegranate) Fruit Juice, Carnosine, Hydrolyzed Collagen, Boswellia Serrata (Indian Frankincense) Extract, Centella Asiatica (Gotu Kola) Extract, Glucosamine, Hyaluronic Acid, Pullulan, Aesculus Hippocastanum (Horse Chestnut) Seed Extract, Betula Alba (Birch Tree) Bark Extract, Niacinamide, Dimethylaminoethanol Bitartrate, Mangiferin, Olea Europa (Olive) Leaf Extract, Alpha Lipoic Acid, Resveratrol, rh-Oligopeptide-1 (Epidermal Growth Factor), Citric Acid, Caprylyl Glycol (and)Phenoxyethanol (and) Sorbic Acid

Key Ingredients

Distilled Water

Lactobacillus/Kelp Ferment Filtrate: natural kelp extract, excellent moisturizer.

Sodium PCA: moisturizing agent, natural, excellent moisturizer.

Propanediol:  promotes a smooth, hydrated skin surface, enhances penetration of other actives.

Magnesium Ascorbyl Phosphate: stable form of Vitamin C, potent antioxidant, improves skin elasticity and diminishes the appearance of wrinkles by promoting collagen synthesis; assists in lightening age spots, skin brightening, and promotes skin healing. The body limits the amount of ingested Vitamin C that is available to the skin, making topical Vitamin C an excellent way to take advantage of the many benefits of this vitamin.

Carnosine (L): natural peptide, antioxidant, improves skin elasticity.

Hydrolyzed Collagen: collagen peptides, supply the building blocks necessary for collagen production, improves skin elasticity and firmness, prevents and corrects lines and wrinkles.

Pomegranate Juice Extract: plant extract, antioxidant, photoprotective properties, hyperpigmentation (skin discoloration, melasma).

Indian Frankincense (Boswellia Serrata): natural, anti-inflammatory, helps preserve skin structure by protecting elastin and hyaluronic acid.

Gotu Kola (Centella Asiatica) Extract: promotes skin elasticity and firmness.

Glucosamine (N-Acetyl): a component of hyaluronic acid, binds water, promotes exfoliation.

Niacinamide: Vitamin B3, helps with inflammation, helps maintain even skin tone.

Pullan: tightens and firms skin.

Horse Chestnut (Aesculus Hippocastanum) Extract: natural, strong anti-inflammatory and antioxidant, strengthens capillaries.

Hyaluronic Acid: improves elasticity and provides excellent hydration because of the ability to penetrate skin and hold water.

Betulinic Acid 80% (Betula Alba Extract): natural, improves skin tone, clarity and elasticity.

Alpha Lipoic Acid: antioxidant, helps improve skin texture.

DMAE Bitartrate (L): promotes elasticity and firmness, fights free radicals.

Resveratrol 98%: antioxidant found in grapes and red wine, provides protection from free radicals, anti-aging.

Mangiferin: derived from the mango tree, protective against UV radiation, powerful antioxidant, anti-inflammatory

Oleurepain: found in olive oil and argan oil, skin healing, protects collagen by inhibiting elastase, antioxidant, anti-inflammatory

Epidermal Growth Factor: increases rate of skin renewal and accelerates healing.

Phenoxyethanol: preservative

Caprylyl Glycol: preservative

Sorbic Acid: preservative

Citric Acid: weak organic acid, used as a natural preservative.



Apply a small amount to clean, dry skin. Follow with a moisturizer and sunscreen or as directed in a specific skincare regimen. For best results, apply consistently.

Tips For Use

Only a small amount of product is needed for maximum benefit. Do not over-apply, especially under makeup to prevent flaking. If flaking occurs, reduce use to once daily in the PM.

For extra benefit to diminish acne scars and to obtain ultimate anti-aging results, use this serum in conjunction with our Total Nutrition Antioxidant Face Cream. This powerful combination will help diminish the size of pores, and expedites fading of red marks and hyperpigmentation.

Apply any extra product to the tops of your hands before moisturizer for a boost in hydration and a more youthful appearance.

Back to top