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Vitamin C Facial Serum

CONTAINS CERTIFIED ORGANIC INGREDIENTS: 20% Stay-C Vitamin C, 3% Niacinamide, 1% Hyaluronic Acid and 1% Vitamin E

STAY-C VITAMIN C: It is your skin's ally against photo damage, youthful radiance and vibrant complexion. With 20% Vitamin C, it helps reduce early signs of aging caused by factors like pollution, stress, sunlight, and reactive oxygen species (ROS). Moreover, it boosts skin firmness

STAY-C 50: is a vitamin C derivative with superior stability in formulations compared to straight ascorbic acid. The easily water-soluble monophosphate ester of ascorbic acid is bio-convertes into Vitamin C by phosphatases present in the skin.  Stay-C is a trademark of DSM.

PREMIUM QUALITY: Cruelty free, Vegan friendly, Paraben free, Sulfate free, Gluten free, Petroleum free, Alcohol free & BPA free. No phenoxyethanol / phénoxyethanol

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  • Made in Canada
  • 3rd Party Lab Tested
  • GMP Certified
  • 100 Day Money-Back Guarantee
  • Save 15% on Subscriptions
  • Ships within 48 hours

Don’t just take our word for it

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Made in Canada

Formulated and manufactured locally in Canada by a team of passionate health nuts.

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100 Day Money-Back Guarantee

Not happy? Let us know and we’ll make it right.

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GMP Certified

We stand behind our product’s safety and quality.

Customer Reviews

Overall rating: 4.8 / 5 from 31 reviews.

I am very pleased with this serum. Makes my skin bright. Reasonably priced and happy it is a Canadian product.

Vitamin C Facial Serum

I like the serum itself, which leaves my skin soft and refreshed. The glass eyedropper applicator becomes coated inside. 1/3 of the way through the bottle, the eyedropper is next to unusable, because it doesn't draw the liquid serum inside. I am suggesting that you use a plain cap on the bottle, instead. Using clean fingertips as your serum "applicator" would be much better than the eyedropper. The serum is great, it brightens and smooths my complexion. Thank you!

Vitamin C Facial Serum

Love the Vitamin C ointment and so happy that it comes from a Canadian company !0

Vitamin C Facial Serum

I love this product and have ordered twice. Effective, easy to use, pleasant texture, absorbs quickly, mild citrus fragrance, affordable. However, though I ordered from the company website it was delivered by Amazon, which I do not patronize, so this will be my last bottle.

Vitamin C Facial Serum

What a surprise, I got a bonus product that I wanted, which I did not know you made: the Senzu vitamin C. I spent 15 years as a formulation chemist in pharmaceuticals, so, I was EXTREMELY impressed by the choices of quality ingredients for this formula. I would only ask that you increase the hyaluronic acid to 10%, to make it even more effective. It smooths the skin, no doubt about it. (I am a youthful looking 62). It is a perfect replacement (for me), for Estée Lauder's decades old "Advanced Night Repair" product. Their product formulators were derived from the pharmaceutical business, and your product is oh-so-similar. Time will tell if it is better.😉 I am now a faithful Senzu client. Thank you for prompt delivery of a fresh, quality product, and this freebie! Go CANADA! Keep up the GREAT WORK! Warm regards, Susan Kelemen, from Montreal, Quebec, Canada, eh?

Vitamin C Facial Serum

Happy with product. Quickly reduces blemish marks and fades dark spots reasonably quickly. Nice texture. Makes face feel smooth the following day when applied at night.

Vitamin C Facial Serum

love this serum you should try it :) its awesomeeeee

Vitamin C Facial Serum

This vitamin c and niacinamide serum is an all-in-one skincare solution I didn't know I needed. My skin feels smoother, looks brighter and the appearance of my pores has significantly reduced. The Niacinamide works its magic, adding a calming effect to my skin. If you're looking for a product that delivers on its promises, this serum is a must-try!

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

I can't say enough good things about this Vitamin C Serum. I've seen a remarkable difference in the brightness and smoothness of my skin since I started using it. The Vitamin C benefits truly work wonders. I wholeheartedly endorse this serum to anyone aiming for healthier skin!

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

I saw a lot of good reviews about this serum, I tried and received my package last week. I'd say this is absolutely good facial serum, it absorbs quickly without leaving a sticky residue and has a very pleasant, light scent that I appreciate. Additionally, a little goes a long way, making it great value for money. I use it as part of my night skincare routine and every morning, my skin feels hydrated and supple.

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

This vitamin c serum combined with the benefits of Niacinamide has taken my skincare routine to a new level. The serum not only brightens my complexion but also helps manage my occasional breakouts, thanks to Niacinamide's skin-soothing properties. It's a skincare powerhouse that has transformed my skin into a radiant, smooth canvas. Absolutely delighted with this product!

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

The Vitamin C Serum has been an absolute game changer in my skincare routine. My complexion has never been better. The serum has helped lighten up some of my dark spots and has given my skin a healthy, vibrant look. The beneficial properties of Vitamin C have transformed my skin in the best way possible. Don't miss out on this product!

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

I have been using the Senzu Facial Serum for several weeks now, and the transformation in my skin is phenomenal. It's now radiant, hydrated, and smoother than ever before, and I couldn't be happier with the results.The application is a breeze with the dropper provided – it allows for precise application without any product waste. The packaging is aesthetically pleasing and durable, and it feels very luxurious to use.

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

This vitamin C serum embraces my skin with its nourishing properties and offers a pleasant, fresh citrus scent. It's easy to apply, although it initially has a slightly sticky texture that dissipates once dried, allowing for subsequent application of daily moisturizer or makeup. I'm noticing a positive change in my skin's overall appearance, observing it to be healthier and smoother. packaging arrives without damage

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

From the very first application, Senzu Serum swept me off my feet. Its silky texture glides effortlessly onto the skin, delivering a burst of hydration that leaves my complexion feeling instantly refreshed. The lightweight formula absorbs like a dream, never leaving a greasy residue, which has been a game-changer for my morning routine.

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

The first thing I noticed about the Vitamin C Facial Serum was its lightweight and non-greasy texture. It effortlessly glides on my skin and absorbs quickly, leaving no residue behind. This has been a game-changer for my morning routine as I can easily layer makeup on top without any issues.If you're looking to enhance your skincare routine and achieve a radiant, youthful complexion, I wholeheartedly recommend trying the Vitamin C Facial Serum. However, as with any skincare product, it's essential to do a patch test and consult with a dermatologist if you have any concerns

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

I've tried numerous anti-aging serums, but this one stands out from the rest. It's packed with powerful ingredients that have noticeably reduced the appearance of wrinkles and fine lines on my face. My skin feels plumper and firmer after using this serum for just a few weeks. The lightweight texture makes it easy to apply, and it absorbs quickly. If you're looking for an effective anti-aging solution, give this serum a try!

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E

I appreciate that this serum is suitable for all skin types. It hasn't caused any irritation or breakouts, which is a huge plus. I also love that it works well under makeup, providing a smooth canvas for application. The serum itself is lightweight and absorbs quickly, leaving no greasy residue. Additionally, the packaging is practical and easy to use, ensuring the product safe.

20% Vitamin C Facial Serum with Niacinamide, Hyaluronic Acid & Vitamin E