Hydrate, Glow, & Protect

Quench

Vitamin C Serum

4.8
Rated 4.8 out of 5 stars
259 Reviews

An antioxidant-packed Vitamin C formula that visibly reduces the look of skin discoloration, supports natural collagen production, helps protect against environmental stressors, and boosts visible radiance—without any irritation.

Size: 1 fl oz 30 mL

add to cart
Square-format lifestyle photo showcasing Quench Serum as part of a daily beauty regimen on a clean, modern vanity.

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.

Square-format lifestyle photo showcasing Quench Serum as part of a daily beauty regimen on a clean, modern vanity.

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.

Trifecta is 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.

Trifecta is 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.

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 259 reviews
Slide 1 selected
Customers Talked About
259 reviews
  • LM
    Lauren M.
    Verified Buyer
    What are your skin concerns? General Aging, Uneven Skin Tone / Discoloration
    2 days ago
    What are your skin concerns? General Aging, Uneven Skin Tone / Discoloration
    Rated 5 out of 5 stars
    Trifecta

    I have been using the Trifecta for several months and it is a simple and effective regime! I highly recommend!

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    31 minutes ago

    Thank you so much for your kind words! We're delighted to hear that you've been enjoying the Trifecta and that it's been a simple and effective part of your routine. We truly appreciate your recommendation and are grateful to have you as part of our community. Thank you for sharing your experience!

  • CM
    Cindra M.
    Verified Buyer
    What are your skin concerns? General Aging, Fine Lines & Wrinkles, Loss of Elasticity, Uneven Skin Tone / Discoloration, Dryness
    2 weeks ago
    What are your skin concerns? General Aging, Fine Lines & Wrinkles, Loss of Elasticity, Uneven Skin Tone / Discoloration, Dryness
    Rated 4 out of 5 stars
    Quench serum soothes

    Been using Karam Trifecta products for over a year as routine. Also do self-microneedling, get facials too. Quench serum is soothing post-washing with Rinse product. Added Polish to routine (during showers). Some people comment on how good my facial skin looks at 62. Pricey but I’m worth it ;-)

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    36 seconds ago

    Thank you so much for sharing your experience! We're thrilled to hear that the Trifecta has been part of your skincare routine for over a year and that you've been enjoying Quench and Polish as well. It's wonderful to know you're receiving compliments on your skin at 62—that's fantastic! And we couldn't agree more... you're absolutely worth investing in. 😊

    We truly appreciate you taking the time to leave a review. We did notice you gave us 4 stars, and we'd love to know if there's anything we could have done differently to earn that 5th star. Your feedback is incredibly valuable and helps us continue to improve both our products and our customer experience.

    Thank you again for your support, and we look forward to hearing from you!

  • RA
    Rae A.
    Verified Buyer
    What are your skin concerns? Fine Lines & Wrinkles, General Aging, Uneven Skin Tone / Discoloration, Loss of Elasticity, Dryness
    2 weeks ago
    What are your skin concerns? Fine Lines & Wrinkles, General Aging, Uneven Skin Tone / Discoloration, Loss of Elasticity, Dryness
    Rated 5 out of 5 stars
    Excellent products!

    I’ve used Quench and Illuminate for about 1 1/2 years now. What is promised happens. I’ve used many many different products in all price ranges and never found something that works as well as this or is so simple to use. Much better skin quality, decreased pore size, reduced wrinkles, better firmness, faded sun spots.

  • VL
    Valerie L.
    Verified Buyer
    What are your skin concerns? Uneven Skin Tone / Discoloration, Environmental Damage, Fine Lines & Wrinkles, General Aging, Loss of Elasticity
    3 weeks ago
    What are your skin concerns? Uneven Skin Tone / Discoloration, Environmental Damage, Fine Lines & Wrinkles, General Aging, Loss of Elasticity
    Rated 4 out of 5 stars
    Quench

    This is the first time I have used Quench. I noticed my skin improved within the first week of using it. My skin tone was brighter and more even, I noticed fine lines and wrinkles were less noticeable, as were my dark spots. My only complaint is not about the product but about the packaging. When I received it I noticed the circular black top on the pump had come off. I was able to put it back on but the pump does not always work. I have difficulty getting the pump to work sometimes so I can’t always get the serum out to use it. Other than that, I love Quench.

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    3 weeks ago

    Hi, Valerie! Thank you so much for taking the time to share your experience with Quench, and we're absolutely thrilled to hear about the amazing results you've seen in just one week! Brighter, more even skin tone and less noticeable fine lines and dark spots, that's exactly what we love to hear! 😊

    We're truly sorry about the issue with the pump mechanism. That's absolutely not the experience we want for you, especially when you're loving the product itself so much.We really appreciate you letting us know about this packaging issue. Your feedback helps us identify areas where we can improve the customer experience, and we'll be sharing this with our team to help prevent similar issues in the future.

    Thank you for giving Quench a try and for sticking with it despite the pump troubles. Please know you can reach out to our customer care team anytime and we are more than happy to help in any way we can.

    We're so glad you're seeing such wonderful results with your skin!