BESTSELLER Vitamin C Serum

Q: How do I use it?

We recommend using our Vitamin C Serum morning AND night. Always use sun protection in the morning as ascorbic acid (vitamin C) boosts sun protection. You can use it as the first step of your skincare routine OR mix together with our All-in-One Essence. We recommend using our Vitamin C Serum with All-in-One Essence for glass-like radiance.

$44.99

Dermatologist-Tested for Sensitive Skin (Dermatest Excellent Rating for Skin Tolerability)

Before/After pictures

- Visible improvement in the look of redness, reduced look of inflammation, and overall brighter skin
- Visibly reduced appearance of hyperpigment

Meet our Bestselling Collagen Booster, Vitamin C Serum!

A lightweight but hydrating oil-free serum.
Formulated with 20% L-ascorbic acid, the purest form of vitamin C, at pH level of below 3.5 for MAXIMUM PENETRATION, allowing vitamin C to work from WITHIN to visibly brighten the skin and even out skin tone
Allantoin to carry active ingredients into the skin for MAXIMUM RESULTS
Hyaluronic acid and panthenol (Vitamin B5) to hydrate the skin and replenish skin barrier for healthier skin.

Click here to find out why Dr. Louie developed Vitamin C Serum.

SAMPLE WITH ORDER

Size:

15g

Variant

One-time purchase

$44.99 CAD

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WHY vitamin c serum

Two potent antioxidants for maximum benefits: Formulated not only with 20% of L-ascorbic acid at an optimal pH level of 3.2 but also with another strong brightening agent, Emblica Extracts, for enhanced brightening effects and protection against skin aging caused by free radicals
Strengthens weakened skin barrier: Provitamin B5 (panthenol) and Aloe extract soothe irritated and sensitive skin while strengthening the skin barrier.
Gives long-lasting hydration: Hyaluronic acid and plant-derived glycerin draw moisture and lock it in to keep the skin hydrated, keeping skin plump and health.
Works in synergy with All-in-One Essence for enhanced antiaging effects: L-ascorbic acid in this product and AA2G, patented and stabilized form of L-ascorbic, in All-in-One Essence work in synergy to deliver enhanced antiaging and brightening benefits.

KEY active ingredients

PUREST form of Naturally-Occuring Vitamin-C (L-Ascorbic Acid) 20%
Clinically-proven antioxidant that gets absorbed quickly into the skin to protect the skin from free radical damage

Hyaluronic Acid
Draws moisture from the surrounding to give the skin a long-lasting hydration

Panthenol
Regenerates the skin while strengthening the skin barrier

Emblica Extracts:The patented 200 x concentrated Indian Gooseberries, Emblica, high in pure Vitamin C. A strong antioxidant, age-defying, and brightening agent

FULL INGREDIENT list

Aqua, Ascorbic Acid*, Glycerin, Panthenol, Allantoin, Hyaluronic Acid, Arginine, Caprylyl Glycol, Phyllanthus Emblica Fruit Extract, Aloe Barbadensis Leaf Juice**

* Natural form of Vitamin C (L-Ascorbic Acid)
** Certiﬁed Organic

how to use + recommendation

After washing your face, dab in 4-5 drops per cheek. Use before using Revitalizing All-in-One Essence.

For best results, keep the product at around 15℃.

*Because of the special nature of ascorbic acid, the product may change colour to brown after opening. As such, we recommend using the product within 3 months.

Our Recommendation

For Collagen Boosting: Use with All-in-One Essence
For Sensitive Skin: Use every other day (at night) to make sure your skin gets used to ascorbic acid

*BESTSELLER* Vitamin C Serum

$44.99

Amazing product

I have used this product for 5 years now and I truly love it. It has evened out my skin and minimizes my hyperpigmentations. My skin still looks fairly youthful at the age of 45. It’s a definite must in my morning and night skin routine.

This is the one

I have tried many brands of vitamin C since it is an important step to optimize healthy skin. Dr Louie’s is the best- it seems much fresher and my skin feels/ looks great when using it!

Best Vitamin C

I have been using this for about a week now. I'm already starting to see a difference. I could not say enough about this product. Especially because it's EWG approved.

c serum

This c serum really seems to help my skin. Buying again

Before using Vitamin C serum I felt the skin dried even after moisturizer. It had an uneven colour. First impression was it was hard to control the flow, was not expecting the contents to be quite so liquid. How if felt on the skin was tingly yet not drying. But I liked how the skin reacted, almost like the hair products, tingly, and fresh. After using Vitamin C Serum, when I look at the photos my skin has a vibrancy, more even and looks less dry and wrinkles are calmer.

Frequently Asked Questions

Can I still use it if I have sensitive skin?

Absolutely! We use a high concentration of panthenol to soothe sensitive skin.

You can apply it first at night time, every other day to make sure your skin gets used to Vitamin C. Then you can slowly increase frequency.

Do I only use it at night?

You can use it both morning and night.

Just make sure to cover it with SPF, like our Protection Cream, when you use it in the morning.

How much do I use?

We generally recommend 4-5 drops per cheek, but it all depends on how much moisture you need. Just DAB it in, instead of rubbing it in.

Can I use it if I'm pregnant or nursing?

Yes, you can use our Vitamin C serum if you're pregnant or nursing. However, skin can become more sensitive during this time, so we recommend doing a patch test before full use to ensure compatibility. As always, consult with your healthcare provider for personalized advice.

Is it gluten-free?

Yes, our Vitamin C Serum is gluten-free.

How do I use it?

We recommend using our Vitamin C Serum morning AND night. Always use sun protection in the morning as ascorbic acid (vitamin C) boosts sun protection.

You can use it as the first step of your skincare routine OR mix together with our All-in-One Essence.

We recommend using our Vitamin C Serum with All-in-One Essence for glass-like radiance.

All Things Vitamin C

Learn more about our research and expert tips on Vitamin C, in particular L-ascorbic acid.

Skincare Tips

Everything You Wanted to Know about Vitamin C Serum

One of the most frequently asked questions about Vitamin C Serum is when the BEST time it is to use Vitamin C Serum. Is it morning or night? Let's find out.

*BESTSELLER* Vitamin C Serum