Vitamin C Hyaluronic Serum

Brightens, Plumps & Defends

$41.00

A brightening antioxidant facial serum powered by stable Vitamin C, Hyaluronic Acid, Hawaiian Astaxanthin, and clinically studied Big Kelp Hydrationâ„¢ with Alaska sugar kelp. This seaweed-based serum helps visibly brighten, plump, and defend skin. Suitable for all skin types, including sensitive skin.

30 ml / 1 fl oz

Reformulated in 2026
The serum you know, now with a more stable form of Vitamin C that won't oxidize in the bottle, plus Hawaiian Astaxanthin for added antioxidant defense.

Best if your vitamin C keeps oxidizing
AA2G is a stable form that won't turn brown or lose potency. The last pump works like the first.

Best for dullness and uneven tone
Helps visibly brighten and even skin tone over time.

Best for sensitive or reactive skin
Works at a skin-friendly pH, so no sting. Unlike traditional L-ascorbic acid serums.

Best if you want defense, not just brightening
Hawaiian Astaxanthin, green tea, and Alaska Sugar Kelp help defend against the daily environmental stress that dulls skin.

How to Use Apply 1-2 pumps to clean, slightly damp skin and gently press into the face and neck. Use morning and night before moisturizer. For daytime, follow with sunscreen

Water (Aqua), Glycerin, Laminaria Saccharina Extract (Alaskan Sugar Kelp), Ascorbic Acid 2-Glucoside, Lactobacillus/Nereocystis Luetkeana Ferment Filtrate, Leuconostoc/Radish Root Ferment Filtrate, Sodium Hyaluronate, Polyglyceryl-6 Caprylate, Polyglyceryl-3 Cocoate, Polyglyceryl-6 Ricinoleate, Polyglyceryl-4 Caprate, Propanediol, Camellia Sinensis (Green Tea) Leaf Extract, Tocopherol, Sodium Phytate, Xanthan Gum, Potassium Sorbate, Sodium Citrate, Sodium Hydroxide, Haematococcus Pluvialis Algae (Astaxanthin).

Shipping

Orders can take 2-3 business days to process before shipping. As soon as your package has left our warehouse, you will receive a confirmation by email. 

Returns

If for any reason you are unhappy with your purchase we offer returns for store credit within 7 days of delivery. If 7 days have passed since your purchase has been delivered, unfortunately, we are unable to offer you a credit or exchange.

Product Benefits

Sulfate-Free
Vegan & Cruelty-Free
Made in California
Clean Since 2010
SEA-EL Vitamin C Hyaluronic Serum in a frosted glass bottle with a white pump dispenser, set against a solid white background.

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Vitamin C Hyaluronic Serum

Vitamin C Hyaluronic Serum

$41.00
A scenic coastal landscape with a sandy beach curving along a grassy cliffside under a soft pink sky, with blue ocean water in the foreground and distant hills with houses.
Vitamin C Hyaluronic Serum

Ingredients

A stable form of vitamin C that helps visibly brighten and even skin tone — without oxidizing in the bottle or stinging on application.

Draws moisture into skin and holds it there, so skin looks plumper and feels hydrated all day.

One of nature's most powerful antioxidants, from microalgae grown in Kona — helps defend skin against daily environmental stress.

Our signature kelp. Its polysaccharides form a light, breathable layer that slows water loss — so skin stays hydrated for hours, not minutes.

Our story

Clean beauty that works

A family brand that's spent fifteen years learning what seaweed can do for skin. That's why we use many different kelps — each for a different benefit.

Clean since 2010. Carlsbad, California.

Frequently Asked Questions

  • Domestic shipping can take 2-5 business days.

  • All our products are subject to quality control.

    Our warranty provides a guarantee against manufacturer defects.

    The guarantee covers any manufacturing, design, or material defect. Please notify us within 2 months of noticing any defects.

  • Yes, we offer full and partial refunds.

    Please enquire for more information about our Refund policy.

  • We use all major carriers, and local courier partners. Use the shipping estimator in the cart to check your shipping rates.

Customer Reviews

Overall rating: 4.9 / 5 from 62 reviews.

Customer video review of Vitamin C Hyaluronic Serum

Basically use this before moisturizing. It feels really smooth and soft on my skin, with no irritation. It gave me a nice glow and makes my skin look hydrated. I will be using this serum every single day.

Vitamin C Hyaluronic Serum

Customer video review of Vitamin C Hyaluronic Serum

We have really hard water, so no matter what I do, my face is chronically dry and just dull. This stuff has been such a refresh for my face, and I wake up not feeling like my skin is going to peel off. It is so hydrated, and it feels plump, youthful, nice and firm. Once it dries down a little bit, I lock it in with some moisturizer. It does have a little bit of a smell, but it is a really nice, natural ocean air smell that is actually quite refreshing.

Vitamin C Hyaluronic Serum

Customer video review of Vitamin C Hyaluronic Serum

I have tried so many skincare products, but I never pictured myself putting seaweed on my face. What I love most is how light it feels. It has such a nice, subtle scent too. I'm really happy with how my skin feels soft, smooth, and hydrated afterwards, and that gives me a little extra confidence before a long day.

Vitamin C Hyaluronic Serum

Customer video review of Vitamin C Hyaluronic Serum

I was getting ready for the day and thought I could actually use some extra hydration. The serum has a bright, pretty color and was really easy to blend in on my face and neck. It has a really soft feeling and does not feel greasy or really oily. It feels like it would layer very good underneath makeup.

Vitamin C Hyaluronic Serum

Customer video review of Vitamin C Hyaluronic Serum

It has a very liquid consistency and no noticeable scent. It absorbs super quickly with no sticky residue. I love the nice glow it leaves on my skin. My skin feels soft and refreshed.

Vitamin C Hyaluronic Serum

Customer video review of Vitamin C Hyaluronic Serum

This is my first time using this serum and I notice that it is a deep orange color, but it rubs in easily and is not staining my skin. It feels very moisturizing, and my pores are loving it right now as I use it before bed. It is kind of messy on the bottle though, because it runs down. I plan to continue to use this every night to see how my skin reacts to it.

Vitamin C Hyaluronic Serum

Store owner replied: Hi! Thank you so much for the kind words! Quick tip: this is best as a morning serum so the Hawaiian Astaxanthin and antioxidants can protect your skin from environmental stressors throughout the day. You can use it at night too, but morning is where it really shines!

Customer video review of Vitamin C Hyaluronic Serum

This serum is super liquidy, so when you pump it out onto your hand, it just wants to run down. It is pretty orange and could probably stain clothing, so a dropper bottle would make much more sense. The packaging is kind of messy, but it smells very neutral and applies well. It feels good on my skin and I think it is hydrating.

Vitamin C Hyaluronic Serum

Store owner replied: Hi! Thank you for the honest feedback! The lightweight texture is intentional. This is a fast-absorbing morning serum designed to keep skin dewy, plump, and protected throughout the day. We use pumps across all of our serums for precise, hygienic dispensing, with dropper bottles reserved for our facial oils. The orange hue is our Hawaiian Astaxanthin, one of nature’s most potent antioxidants. The concentration is not enough to stain and absorbs beautifully into skin. So glad it feels hydrating! That’s our clinically studied Alaskan Sugar Kelp working its magic.

Customer video review of Vitamin C Hyaluronic Serum

I like that it is kind of watery because it melts right in and goes on super smooth. It doesn't have a harsh smell, which I really like since scents can sometimes be a little too much. My skin does feel hydrated overall, and it is super lightweight and easy to use.

Vitamin C Hyaluronic Serum

Store owner replied: So glad you’re loving it! The lightweight, fast-absorbing texture is exactly what we designed it for. Happy your skin is feeling hydrated!

Customer video review of Vitamin C Hyaluronic Serum

So far, I really like this Vitamin C Hyaluronic Serum! I love that it has both Vitamin C and Hyaluronic Acid in it, saving me time by combining those two ingredients in one product. The serum is very lightweight and spreads easily across the skin. It absorbs quickly without leaving any tackiness or greasiness behind. It is very brightening and hydrating and I love the glow it gives my skin.

Vitamin C Hyaluronic Serum

Store owner replied: This made our day! You nailed it — the whole idea was to combine Vitamin C and Hyaluronic Acid into one lightweight, hardworking serum so you’re not layering multiple products. That glow is our Hawaiian Astaxanthin doing its thing. So happy it’s working for you!

Customer photo review of Vitamin C Hyaluronic Serum

I love the new formula! Its lightweight and I love astaxanthin and am so glad they added it to the formula.

Vitamin C Hyaluronic Serum

Store owner replied: Thanks for sharing, love seeing product images, especially an amazing one with a sunset!

Customer photo review of Vitamin C Hyaluronic Serum

This is the best serum I've found. -clean, quality ingredients -effective in brightening, moisturizing, and protecting my skin -affordable The website is easy to use, customer service is great.

Vitamin C Hyaluronic Serum

Customer photo review of Hyaluronic Acid Vitamin C Facial Serum

I love how fast this absorbs and the smell is so unique. I’m only using a short time so time will tel thank you.

Hyaluronic Acid Vitamin C Facial Serum

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Vitamin C Hyaluronic Serum

I thought the Hydronic Acid would hydrate my face and the Vitamin C brighten the skin. However my face feels dryer after using the product. Of course i then use 2 moisturizers to feel better. Instead of returning the product, i decided to keep trying it to give the product a chance to see if over time there would be a difference.

Hyaluronic Acid Vitamin C Facial Serum

I’ve only been using it for a short time, but my skin already feels so much better, and looks healthier too.

Hyaluronic Acid Vitamin C Facial Serum

I love this serum, it really helps to reduce the appearance of the pigmentation (freckles and brown spots) on my face caused by years of sun exposure. It is a regular tool in my daily regimen.

Hyaluronic Acid Vitamin C Facial Serum

I love this serum, it really helps to reduce the appearance of the pigmentation (freckles and brown spots) on my face caused by years of sun exposure. It is a regular tool in my daily regimen.

Hyaluronic Acid Vitamin C Facial Serum

Love this product! Keeps my skin feeling hydrated throughout the day and blends seamlessly with my moisturizer. I can't go without it!

Hyaluronic Acid Vitamin C Facial Serum

Absolutely love this serum. It’ll make you put your other serums to the side. Very hydrating and absorbs quickly.

Hyaluronic Acid Vitamin C Facial Serum

Absolutely love this serum. It’ll make you put your other serums to the side. Very hydrating and absorbs quickly.

Hyaluronic Acid Vitamin C Facial Serum

I use the Hyaluronic Acid Vitamin C Facial Serum just before applying my moisturizer. It really hydrates and plumps my skin. I like the look.

Hyaluronic Acid Vitamin C Facial Serum

I use the Hyaluronic Acid Vitamin C Facial Serum just before applying my moisturizer. It really hydrates and plumps my skin. I like the look.

Hyaluronic Acid Vitamin C Facial Serum

I use the Hyaluronic Acid Vitamin C Facial Serum just before applying my moisturizer. It really hydrates and plumps my skin. I like the look.

Hyaluronic Acid Vitamin C Facial Serum

This is a lovely serum. It has lightweight feel and absorbs well. It’s non-greasy and leaves skin feeling hydrated. It layers well with my other products and leaves a subtle glow.

Hyaluronic Acid Vitamin C Facial Serum