Vitamin B Intensive Hydrating Hyaluronic Acid Serum, 1oz
Deep, lasting hydration and a calmer, more even complexion from niacinamide, hyaluronic acid, and ceramides.
$90.00
1 oz · about a 2-month supply, around $1.50 a day
The serum every other product in your routine works better with.
What it is
The hydration backbone of the line: a results-focused serum that pairs two essential B vitamins with hyaluronic acid and plant-derived ceramides to hydrate deeply, strengthen the skin's moisture barrier, and even the complexion. The texture is gently lightweight with a very, very light scent, and it absorbs in moments, disappearing under everything you layer over it.
Who it's for
Every skin type, every routine, twice a day. Dehydrated skin gets the drink it's been begging for, sensitive and reactive skin gets one of the gentlest formulas we make, and skin using actives like vitamin C or peptides gets the barrier support that lets those ingredients do their best work.
Why this works, concern by concern
Think of your skin barrier as a brick wall: skin cells are the bricks, and lipids called ceramides are the mortar. When the mortar thins, which happens naturally with age and over-cleansing, moisture escapes and irritants get in. This serum rebuilds the wall from two directions at once.
The problem: a thinning moisture barrier lets water escape and irritants in.
- Niacinamide (Vitamin B3). One of the most-studied ingredients in all of skin care. Research shows it helps skin produce more of its own ceramides, strengthening the moisture barrier and reducing water loss, while visibly refining pores and evening skin tone.
- Glycosphingolipids (Vegetable Ceramides). The mortar itself, delivered directly. These plant-derived lipids are the same family of molecules your barrier is built from, replenishing what age and cleansing strip away.
The problem: dehydration shows up as fine lines and skin that drinks in moisturizer without looking better.
- Hyaluronic Acid. The reservoir. This molecule holds many times its weight in water, pulling moisture into the skin and visibly plumping the fine lines that dehydration causes.
The problem: sensitive, reactive skin that flares when you try something new.
- Panthenol (Provitamin B5). The soother. A provitamin that supports the skin's own recovery, calms visible irritation, and adds another layer of lasting hydration.
The bonus: antioxidant and probiotic backup that keeps a healthy barrier healthy.
- Ginkgo Biloba and Lactobacillus Ferment. Antioxidant defense plus probiotic support for the skin's microbiome, the living layer that keeps a healthy barrier healthy.
Why it belongs in your regimen
Hydration is the foundation everything else stands on. A strong, well-hydrated barrier holds results longer, tolerates actives better, and simply looks younger; this is why dermatologists put barrier health at the center of every routine for skin over 40. Use it morning and night, and every serum, oil, and balm you own starts performing better.
What it's like to use
Gently lightweight, with a very light scent and a clean, water-silk feel. Press 3 to 4 drops into the face, neck, and decolletage morning and evening; it absorbs quickly and layers under everything without pilling. Customers with the most reactive skin tell us this is the one that never makes them flare.
The facts
1 oz glass bottle with dropper · Made in Mississippi · Vegan and cruelty-free · No synthetic fragrance · No parabens
Ingredients
Aqua (Water), Ginkgo Biloba Leaf Extract, Propanediol (Sugar-Derived), Niacinamide (Vitamin B3), Panthenol (Provitamin B5), Organic Vegetable Glycerin, Glycosphingolipids (Vegetable Ceramides), Sodium Hyaluronate (Hyaluronic Acid), Xanthan Gum, Sodium Levulinate (Plant-Derived), Sodium Anisate (Plant-Derived), Sodium Phytate (Rice-Derived), Phenethyl Alcohol (Rose-Derived) and Lactobacillus Ferment (Plant-Fermented Probiotic).
Watch
A closer look
The key ingredients
Open any ingredient in our Ingredient Library to see what it does and where it comes from.
What to expect
Real results take a full skin cycle. Here's an honest timeline.
Deep, lasting hydration
Hyaluronic acid and B5 pull in moisture and hold it. The tight, thirsty feeling after cleansing disappears.
Calmer, clearer skin
Niacinamide is strengthening the barrier and gently fading redness. Skin starts holding its hydration through the whole day.
A balanced, even-toned complexion
Tone looks more uniform, fine lines look softened by steady hydration, and skin handles weather and stress with less drama.
Where it fits in your Miracle Ritual
Cleanse or tone
Apply to clean, slightly damp skin. Hyaluronic acid loves a little moisture to grab onto.
This serum
Press in 3 to 4 drops, morning and night. It layers under everything without pilling.
Moisturize
Seal it in with a balm or facial oil, like the Blue Algae Serum Balm, to lock the hydration deep in the skin.

