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Shop โ€บ Cosmetic Tallow โ€” Reviana โ€บ Serum for hydration
โ˜…โ˜…โ˜…โ˜…โ˜… 4.7 Average rating by PrimalPantry Trusted by 100,000+ kiwis
HYALURONIC ACID ยท PANTHENOL ยท TALLOW

Serum for dry skin and deep hydration.

Low-molecular-weight hyaluronic acid that hydrates effectively, carried on a bio-identical tallow โ€” for skin that feels plumper, softer and more comfortable.

Built for dry skin Tallow + Low-MW HA + Panthenol

Hydration that doesn't evaporate

Water-based serums hydrate the surface and evaporate. This one is built on tallow โ€” nearly identical to the lipids your skin makes itself โ€” so it holds hydration in and carries low-molecular-weight hyaluronic acid into the skin's surface, for plumping that lasts.

Deep hydration and a plumper-looking surface โ€” comfort that lasts.

"My skin feels super soft and hydrated. It glides on really smoothly."

โ€” Brenda โ˜…โ˜…โ˜…โ˜…โ˜…

$59.95

or 4 interest free payments of $14.99 with afterpay

One-Time Purchase
15ml ยท 2โ€“3 months supply
$59.95
In Stock

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Naturally derived ยท Money back guarantee ยท Free shipping over $75

Reviana Serum 15ml

$59.95 ยท or 4ร— $14.99 Afterpay

Why's this serum so special?

Most hydration sits on the surface

A water + glycerin serum will hydrate the very top layer of your skin, and then evaporate within an hour. Skin underneath stays dry โ€” and the surface ends up tight again.

Tallow is the lipid your skin's barrier is built from

Its fatty-acid profile is nearly identical to your skin's own โ€” so it doesn't sit on top, it integrates with the barrier. That locks the water in instead of letting it escape.

Low-MW hyaluronic acid travels deeper than standard HA

Standard HA molecules are too large to work into the skin's surface. The low molecular weight form in this serum works into the skin's surface where it draws and holds water โ€” for plumping you can see and feel.

Plumper, softer skin from the first application โ€” comfort that lasts.

Full Ingredient List

Aqua, Glycerin, Azelaic Acid, Niacinamide, Benzyl Alcohol (and) Dehydroacetic Acid, Polyacrylate Crosspolymer-6 (and) t-Butyl Alcohol (and) Water, Panthenol, Tallow, Glycyrrhiza Glabra (Licorice) Root Extract, Parfum (Aloe & Cucumber LC), Asiaticoside (and) Madecassic Acid (and) Asiatic Acid, Sodium Hyaluronate, Bisabolol, Tocopherol (and) Helianthus Annuus (Sunflower) Seed Oil, Sodium Phytate (and) Aqua (and) Alcohol, Sodium Citrate, Aloe Barbadensis Leaf Extract.

As with any new skincare, patch test before full use.

Morning and evening โ€” before moisturiser

After cleansing, apply 3โ€“4 drops to face and neck. Press gently into skin โ€” don't rub. Allow 30โ€“60 seconds to absorb, then follow with Reviana Day Cream (morning) or Night Cream (evening).

A 15ml bottle lasts approximately 2โ€“3 months with twice-daily use.

Shipping

Processing: 1โ€“3 business days + 3โ€“5 business days NZ-wide.

Cost: $6.95, or free on orders over $75.

International: Available in NZ & Australia.

From the Founder

Curtis

"The serum is where the real work happens. I wanted something lightweight that you'd barely feel, but that quietly transforms your skin over time."

Curtis Fairweather ยท Founder

We knew tallow alone wasn't enough for this. So we partnered with one of NZ's most awarded cosmetic formulators โ€” someone who's spent decades developing for some of the world's largest billion-dollar beauty brands โ€” then hired specialist in-house staff to manufacture every batch to the highest standard.

It's high-performance cosmetic skincare, built to a level the NZ tallow industry has never seen โ€” and it all starts with the ingredient your skin already trusts.

Verified Reviews

A

Andrea โ˜…โ˜…โ˜…โ˜…โ˜…

Age 40 ยท Mar 2026

"Love the feel of it after I put it on. It absorbs really quickly."

K

Kerry โ˜…โ˜…โ˜…โ˜…โ˜…

Age 56 ยท Mar 2026

"Really light and refreshing โ€” it's got that cucumber freshness. Goes into the skin seamlessly."

B

Brenda โ˜…โ˜…โ˜…โ˜…โ˜…

Age 69 ยท Mar 2026

"My skin feels super soft and hydrated. It glides on really smoothly."

C

CJ โ˜…โ˜…โ˜…โ˜…โ˜…

Age 46 ยท Mar 2026

"The texture is super-smooth and light. With tallow's oils being so similar to our own skin, it feels like it enhances rather than changes it."

The Science

Hydration that actually lasts

Hyaluronic acid only works if it can reach the layers that need it. This serum pairs low-molecular-weight HA with a bio-identical tallow โ€” so the water is held at the skin's surface, helping keep skin hydrated and comfortable instead of evaporating.

Lightweight enough to layer comfortably under both Day and Night Cream โ€” and an SPF for daytime.

๐Ÿ’ง Hyaluronic Acid (Low MW)

Low molecular weight HA works into the skin's surface where standard HA can't โ€” for skin that looks and feels plump, hydrated and comfortable.

๐Ÿงฌ Cosmetic Tallow

Bio-identical to your skin's own lipids. Integrates with the moisture barrier to lock hydration in, instead of sitting on top.

๐ŸŒพ Panthenol (B5)

Provitamin B5 โ€” a humectant that holds water in the skin while soothing surface tightness and supporting barrier comfort.

๐Ÿ”ฌ Niacinamide (B3)

Supports barrier function and ceramide production โ€” the structural fats that help keep skin hydrated and comfortable day to day.

What to Expect

A Timeline Based on the Research

What published ingredient research suggests with twice-daily serum use โ€” and when.

Day 1
Immediately
Immediate hydration & plumping

Low-molecular-weight Hyaluronic Acid plumps the surface from the first application. Skin feels softer, more comfortable, less tight.

Wk 1
Week 1
Less daily tightness

The tallow helps support and condition the skin's moisture barrier, helping keep skin hydrated and comfortable. Skin holds hydration through the day instead of going tight by mid-afternoon.

Wk 4
Week 4
Visibly plumper texture

Niacinamide and Panthenol continue supporting barrier ceramides. Skin's water-holding capacity improves โ€” visible plumpness instead of surface plumpness only.

Wk 8+
Week 8+ โ€” lasting result
Hydration that stays

A well-conditioned, supported moisture barrier helps skin hold moisture. Even without the serum, skin feels less prone to the dryness-and-tightness cycle. The kind of hydration you don't have to top up every hour.

Individual results vary. Timeline based on published studies for each key active at relevant concentrations.

Also by PrimalPantry

Reviana โ€” for sensitive skin

Tallow-first face skincare with added ceramides and peptides. Built for skin that struggles with mainstream products โ€” same craftsmanship, same calm.

Formulated for sensitive skin ยท No tallow scent ยท Fragrance-free

Reviana Day Cream

Tallow Day Cream

Barrier building moisturiser ยท 50ml

NZ$49.95

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Reviana Night Cream

Tallow Night Cream

Overnight renewal ยท 50ml

NZ$49.95

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Reviana Eye Cream

Tallow Eye Cream

Brightening eye treatment ยท 15ml

NZ$54.95

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Reviana Serum

Tallow Hydration Serum

Vitamin C ยท Hyaluronic ยท 15ml

NZ$59.95

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Grab the set โ€” NZ$214.80

All four products ยท one ritual


Explore the full Reviana range →