Quench

Vitamin C Serum

4.8
Rated 4.8 out of 5 stars
240 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.

✓ 60 day money back guarantee on first order

✓ FFREE SHIPPING to USA, Canada, and UK

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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.

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 240 reviews
Slide 1 selected
Customers Talked About
240 reviews
  • CM
    Clare M.
    Verified Buyer
    What are your skin concerns? Fine Lines & Wrinkles, Uneven Skin Tone / Discoloration, Environmental Damage, Loss of Elasticity, Skin Texture
    10 hours ago
    What are your skin concerns? Fine Lines & Wrinkles, Uneven Skin Tone / Discoloration, Environmental Damage, Loss of Elasticity, Skin Texture
    Rated 5 out of 5 stars
    My skin has never looked so good!

    My skin looks so good after using this product for 3 months! This is third bottle no on my skin and people have commented how good my skin looks. It has even put my redness and dark patches on my skin and my skin has a glow to it that it hasn’t had before! I will definitely be using this indefinitely as I’m scared to stop now!

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    29 seconds ago

    Hi Clare! We're absolutely thrilled to hear that Quench has given you such incredible results after 3 months! It's so wonderful that people are noticing how amazing your skin looks - there's nothing better than that natural glow and confidence that comes from healthy skin. We're especially happy to hear that it's helped with your redness and dark patches. Thank you for sharing your beautiful transformation and for trusting KaramMD Skin! ✨

  • KW
    Kathy W.
    Verified Buyer
    What are your skin concerns? General Aging
    Yesterday
    What are your skin concerns? General Aging
    Rated 5 out of 5 stars
    Return to the best.

    I had given up my Trifecta so I could try a new medical grade skincare line. After about 4 months I could tell that I’d made a mistake. Back on my Trifecta now and my skin looks great again!

    Great product line!

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    22 hours ago

    Hi Kathy! We're so thrilled to hear that you found your way back to Trifecta! It's wonderful that after exploring other options, you discovered that Trifecta truly is the best fit for your skin. Your experience is such a beautiful testament to the effectiveness of Dr. Karam's formulations - and we're absolutely delighted that your skin looks great again! Thank you for sharing your journey and for trusting KaramMD Skin! ✨

  • CB
    Cynthia B.
    Verified Buyer
    What are your skin concerns? General Aging, Uneven Skin Tone / Discoloration, Dryness, Skin Texture, Congested Pores
    4 days ago
    What are your skin concerns? General Aging, Uneven Skin Tone / Discoloration, Dryness, Skin Texture, Congested Pores
    Rated 5 out of 5 stars
    Glass Skin!!

    This has hydrated my skin so much. I see a transformation in its smoothness!!!!

  • CL
    Catherine L. O.
    Verified Buyer
    What are your skin concerns? Fine Lines & Wrinkles, General Aging
    4 days ago
    What are your skin concerns? Fine Lines & Wrinkles, General Aging
    Rated 3 out of 5 stars
    Great Product, Faulty Dispenser

    I love ALL of the Trifecta products. But this dispenser has been difficult. The nozzle clogs & the latest one I have, the product is only accessible because it's bleeding through on the top creases when pumped. I much preferred the old dropper bottle. Then I could be SURE to access ALL of the product.

    KS Profile picture for KaramMD Skin
    KaramMD Skin
    3 days ago

    Thank you for your thoughtful review, Catherine! We're so glad to hear that you love all of the Trifecta products and that they're working well for you.

    We're genuinely sorry to hear about the issues you've been experiencing with the Quench dispenser. If the pump ever stops working, please don’t hesitate to email our Customer Care team at customerservice@karammdskin.com. We'll make sure you don’t miss a single step in your routine.

    Thank you for being such a loyal customer and for taking the time to share this with us!