Quench

Vitamin C Serum

4.8
Rated 4.8 out of 5 stars
147 Reviews

Award-winning antioxidant-packed formula featuring three stable forms of Vitamin C—brightens and revitalizes, delivering potent anti-aging benefits without irritation for radiant, healthier-looking skin.

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MD Formulated

Clinically Proven

Premium Ingredients

For All Skin Types

Cruelty Free

Clinically Proven to Fight Aging Skin

When used consistently within the Trifecta system, Quench visibly reduces signs of aging in as little as 4 weeks. We adhere to the highest product standards and validate efficacy through rigorous third-party testing. After 8 weeks of usage, the clinical study proved:

100% of subjects had improvement in skin’s moisture.

100% of subjects had improvement in fine lines & wrinkles.

91% of subjects had improvement in skin’s firmness.

Clinically Proven to Fight Aging Skin

When used consistently within the Trifecta system, Quench visibly reduces signs of aging in as little as 4 weeks. We adhere to the highest product standards and validate efficacy through rigorous third-party testing. After 8 weeks of usage, the clinical study proved:

100% of subjects had improvement in skin’s moisture.

100% of subjects had improvement in fine lines & wrinkles.

91% of subjects had improvement in skin’s firmness.

Truly Innovative
Anti-Aging Formulas

TRIPLE VITAMIN C COMPLEX
Delivers three stable forms of Vitamin C designed for powerful results without the irritation. Formulated with moderated doses for twice daily use.

PROVEN BRIGHTENING
Visibly reduce discoloration & pigmentation issues due to aging and sun damage.

ANTIOXIDANT-RICH HYDRATION
Infused with botanicals and antioxidants to soothe and calm irritation and redness.

Truly Innovative
Anti-Aging Formulas

TRIPLE VITAMIN C COMPLEX
Delivers three stable forms of Vitamin C designed for powerful results without the irritation. Formulated with moderated doses for twice daily use.

PROVEN BRIGHTENING
Visibly reduce discoloration & pigmentation issues due to aging and sun damage.

ANTIOXIDANT-RICH HYDRATION
Infused with botanicals and antioxidants to soothe and calm irritation and redness.

How to Use

Apply 1-2 pumps to freshly cleansed face, eye area, and neck, morning and night.

Consistent use for a minimum of 3-6 months, and beyond is key to see best results.

How to Use

Apply 1-2 pumps to freshly cleansed face, eye area, and neck, morning and night.

Consistent use for a minimum of 3-6 months, and beyond is key to see best results.

Vitamin C Serum

Hands down this is the best Vitamin C serum I have used. I have used the product for over 3 months now and my skin tones are more even and brighter.” - Sari R.

Active & Potent

“Everyone knows Vitamin C is powerful but not all serums are created equal. From first use of this Vitamin C my skin soaked this serum up and I noticed a difference in my skin. ” - Michelle L

Stand Out Vitamin C Serum

“I have tried many different C serums over the years and this is above and beyond the best I have used. I have been using consistently for nearly a year now and notice how smooth and dewy my complexion has become.” Annabel P.

Quench Immediate Results

 “I am truly in love with Quench. I am 69 years old and have never used vitamin C serums. Sunspots have already started to reverse my skin is much clearer and smoother, and just overall healthier looking and feeling.” - Vickie B. 

Best Vitamin C Serum I’ve Tried

“Best Vitamin C Serum I’ve tried. I have tried many, and either didn’t live the texture or smell, or both. A small amount goes a long way, and glides on easily, while still being well-absorbed.” - Susan C. 

This Vitamin C Works

“I really like this Vitamin C. It feels good on my skin is easy to apply, and it works. After using it for several months, it helped tighten the skin of my neck so it does not look wrinkled.” - Judy T. 

Great Skin Made Simple

The Trifecta was developed by world renowned skin and facial rejuvenation expert Dr. Amir Karam. This routine is formulated with only the best high-quality ingredients, and designed to deliver results that only get better over time. Learn more about the creation of the Trifecta. 

Great Skin Made Simple

The Trifecta was developed by world renowned skin and facial rejuvenation expert Dr. Amir Karam. This routine is formulated with only the best high-quality ingredients, and designed to deliver results that only get better over time. Learn more about the creation of the Trifecta. 

INGREDIENTS

QUENCH

Aqua/Water/Eau, Pentylene Glycol, Magnesium Ascorbyl Phosphate, Aminopropyl Ascorbyl Phosphate, Tetrahexyldecyl Ascorbate,  Sodium Hyaluronate, Ziziphus Spina-Christi (Christ’s Thorn) Leaf Extract, Epilobium Angustifolium (Fireweed) Flower/Leaf/Stem Extract, Camellia Sinensis (Tea Camellia) Leaf Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Trehalose,  Panthenol, Aloe Barbadensis (Aloe Vera) Leaf Juice, Tocopherol, Glycerin, Hydroxyethylcellulose, Phenoxyethanol, Ethylhexylglycerin, Sodium Nitrate, Disodium Phosphate, Polysorbate 60, Citric Acid, Sodium Phosphate, Potassium Sorbate, PPG-26-Buteth-26, Sodium Benzoate, PEG-40 Hydrogenated Castor Oil, Glyoxal, Sodium Metabisulfite, Sodium Hydroxide.

4.8
Rated 4.8 out of 5 stars
Based on 147 reviews
147 reviews
  • S
    Sherri
    1 week ago
    Rated 5 out of 5 stars
    5 Stars

    My skin looks the best it ever has. Vibrant and smoother.

  • NW
    Nicole W.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Simply put, Trifecta is unmatched.

    My skin looks 5-8 years younger after using Trifecta and I saw results in the first few weeks. Some of the adjunct ingredients in these products have proven to increase the Vitamin C and Retinol’s efficacy in a gentle way. It’s important to stay consistent so take advantage of auto-ship and you’ll save some $

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    1 week ago

    Thank you for your wonderful review, Nicole! We're so happy to hear about your incredible experience with the Trifecta system - the fact that you're seeing results that make your skin look 5-8 years younger is truly amazing and exactly the kind of transformative outcome that can be achieved with Trifecta and your dedication to staying consistent. It's particularly rewarding to know that you noticed improvements in just the first few weeks, and your insight about the adjunct ingredients enhancing the efficacy of Vitamin C and Retinol in such a gentle way really demonstrates your understanding of how thoughtfully these formulations were crafted. You're absolutely right about the importance of consistency, and we're so glad the auto-ship option is working well for you - it really does help maintain that routine while providing great value. Your trust in our products means the world to us, and we're deeply grateful to have you as part of the KaramMD Skin community. Thank you for sharing your inspiring experience with us!

  • DC
    Danette C.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Amazing prody

    Feels so good on my skin. Like butter. Gives my skin a glow. I get so many compliments on my skin. I am constantly recommending this trifecta.

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    1 week ago

    Thank you for your wonderful review, Danette! We're so glad to hear about your amazing experience with Quench and how it's giving your skin that beautiful, buttery-smooth feeling and natural glow. It's particularly rewarding to know that you're receiving so many compliments on your skin - there's nothing quite like that confidence boost that comes from healthy, radiant skin! The fact that you're so enthusiastic about recommending the Trifecta system to others really speaks to the transformative results you're experiencing through the power of the products and your dedication to your routine , and we couldn't be more grateful for your advocacy. Your trust in our products means the world to us, and we're deeply grateful to have you as part of the KaramMD Skin community. Thank you for sharing your inspiring experience with us!

  • L
    Laura
    Verified Buyer
    2 weeks ago
    Rated 4 out of 5 stars
    Great product, poor packaging

    I love this product - it has definitely improved my skin tone. The problem is the bottle and pump. The bottle is large, but there's no way to see how much product is left. When it stopped pumping out product, it seemed too soon for it to run out. I wasn't sure if it had really run out or if the pump stopped working (some reviews mention problems with the pump). I ended up throwing the bottle away, but I am still wondering if it really was empty. The packaging needs to be improved. Vitamin C should be stored in a dark container, but there are alternatives to the current bottle out there.

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    1 week ago

    Thank you for sharing your thoughtful feedback, Laura! We're so glad to hear that Quench has delivered such positive results for your skin tone!

    We truly appreciate your feedback regarding the packaging as these are valuable insights that help us understand how our products perform in real-world use. We recognize that being unable to see the remaining product level can create uncertainty but we did carefully select our current packaging based on the best available options and with the intent of maintaining the quality of the product while also allowing ease of use for our customers. The truth is that there is no absolute perfect packaging and we spent so much time and put so much thought into choosing the best option for our products. As with our formulas, we never cut corners or do anything without careful consideration.

    That being said, we understand how frustrating it must have been to question whether the product was truly empty or if there was a pump issue. If you are a frequent user, it can be helpful to know how long the product usually lasts and if there was any variation in that. The Quench should last 30-45 days maximum if used twice daily as recommended. Once you get into a rhythm with your routine, it becomes easier to know when your product usually runs out given your specific usage habits. If you ever have any doubts or questions you can always reach out to our customer care team and we would be more than happy to help!

    We're honored that despite the packaging concerns, you've experienced such positive improvements with Quench and we appreciate you taking the time to share your experience!