• 28N B² Centella Hydration Booster serum for dry, dehydrated and sensitive-feeling skin
  • 28N B² Centella Hydration Booster with Vitamin B5, Vitamin B12, Copper Peptide and purified Madecassoside
  • 28N B² hydration serum for dry, tight and sensitive-feeling skin, designed to layer before targeted serums
  • 72-hour moisture-binding hydration technology in 28N B² Centella Hydration Booster serum
  • 28N B² hydration and comfort serum for softer, plumper and freshly replenished-looking skin
  • 28N B² Centella Hydration Booster with 72-hour moisture-binding hydration, Vitamin B5, B12 and Centella
  • 28N B² hydration serum with Vitamin B5, B12, purified Madecassoside, Copper Tripeptide-1 and Hyaluronic Acid
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Science-Led Skincare | Results-Focused Formulas

B² Centella Hydration Booster

B² Centella Hydration Booster

$79.00 AUD
$79.00 AUD
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Give dry, tight or sensitive-feeling skin long-lasting hydration with B² Centella Hydration Booster — a lightweight first-step serum designed to hydrate, comfort and prepare the skin for the rest of your routine.

Powered by a multi-pathway hydration system combining a 72H moisture-binding sugar complex, Vitamin B5, Betaine, Glycerin and an oil-soluble Hyaluronic Acid derivative, B² helps maintain lasting moisture without the heavy, sticky finish of conventional hyaluronic acid gels.

Vitamin B12, purified Madecassoside and Copper Tripeptide-1 provide additional support for visible redness, skin comfort and recovery.

Hydration That Stays. Comfort That Lasts.

  • Long-lasting hydration for up to 72 hours*
  • Helps relieve dry, tight and uncomfortable skin
  • Helps calm the appearance of visible redness
  • Lightweight, fast-absorbing, non-sticky finish
  • Designed to layer before A⁶, B⁶ and Vitamin C Booster

Usage Recommendation

Apply morning and night after cleansing, before targeted serums.

Use alone for lightweight hydration or as the first serum step before A⁶, B⁶ or Vitamin C Booster.

Designed for dry, dehydrated and sensitive-feeling skin. Optimised for daily use.

*Based on efficacy data for the moisture-binding sugar complex. Hydration performance of the finished B² formula has not been independently tested for 72 hours.

 

Where B² Fits in Your Routine

CLEANSE

↓

B²
Hydrate + Comfort

↓

A⁶ / B⁶ / VC
Target

↓

3D / MOISTURISER
Support + Seal

↓

SPF — AM

B² is your hydration-prep step.
It adds lightweight moisture and comfort before targeted serums. 3D Barrier Defence follows when additional barrier support and moisture are needed.

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Inside the Formula

Active Ingredients & Benefits

More Than a Hyaluronic Acid Serum

B² Centella Hydration Booster takes a multi-pathway approach to hydration and skin comfort, combining moisture-binding sugars, humectants, an advanced Hyaluronic Acid derivative, soothing actives and a skin-recovery peptide.

The result is long-lasting hydration with the clean, exceptionally fast-absorbing sensory profile of 28N.

72H Moisture-Binding Sugar Complex
-Saccharide Isomerate:
A skin-binding carbohydrate complex that attracts moisture and helps maintain hydration for up to 72 hours, including after rinse-off.*

Moisture & Comfort Complex
-Vitamin B5 + Betaine + Glycerin:
Complementary humectants that help replenish moisture, relieve dryness and tightness, and support a softer, more comfortable skin feel.

Centella + Vitamin B12
-Purified Madecassoside + Cyanocobalamin:
Madecassoside, a highly purified active derived from Centella, works alongside Vitamin B12 to help calm visible redness and support sensitive-feeling skin.

Vitamin B12 also gives B² its distinctive natural pink colour.

Copper Peptide
-Copper Tripeptide-1:
A skin-conditioning peptide that supports skin recovery and helps promote a smoother, firmer and more resilient-looking appearance.

-Advanced Hyaluronic Acid
C12-15 Alkyl Hyaluronate:
An oil-soluble Hyaluronic Acid derivative that helps condition and soften the skin while delivering an elegant finish without the tackiness commonly associated with conventional Hyaluronic Acid gels.

-Sphingomonas Ferment:
A skin-conditioning ferment that helps create a lightweight moisture veil for a smoother, more comfortable skin feel.

Directions for Use

Apply a few drops, approximately half a dropper, to clean skin morning and night. Gently smooth over the face and neck until absorbed.

For use within the 28N routine, apply B² Centella Hydration Booster before A⁶, B⁶ or Vitamin C Booster, then follow with 3D Barrier Defence or moisturiser as needed. Finish with sunscreen during the day.

Patch test before use. For external use only. Avoid direct contact with eyes. Discontinue use if irritation occurs.

Nature meets Science

Formulated with a high percentage of ingredients of natural origin, calculated according to ISO 16128 standards.

Designed to deliver long-lasting hydration while supporting skin comfort and recovery, combining a 72H moisture-binding sugar complex with Vitamin B5, Vitamin B12, purified Madecassoside and Copper Tripeptide-1.

Ingredient List

Water (Aqua), Panthenol, Betaine, Glycerin, Saccharide Isomerate, Copper Tripeptide-1, Madecassoside, C12-15 Alkyl Hyaluronate, Cyanocobalamin, Sphingomonas Ferment Extract, 1,2-Hexanediol, Tropolone, Caprylyl Glycol, Citric Acid, Sodium Citrate.

Free from

Fragrance, Essential Oils, Phenoxyethanol, Parabens, Mineral Oil and PEGs.

28N B² hydration and comfort serum for softer, plumper and freshly replenished-looking skin

Hydration Designed to Stay

B² goes beyond short-term hydration.

Its moisture-binding Saccharide Isomerate complex is designed to bind to the skin, helping maintain hydration for up to 72 hours — even after rinse-off.*

Combined with Vitamin B5, Betaine and Glycerin, B² supports lasting hydration and skin comfort without a heavy or sticky finish.

72-hour claim is based on efficacy data for the Saccharide Isomerate complex. The finished B² formula has not been independently tested for 72-hour hydration.

Purified Madecassoside derived from Centella asiatica for soothing and skin-conditioning care in 28N B² Centella Hydration Booster

Centella, Refined.

B² goes beyond a conventional Centella extract. It uses purified Madecassoside, a targeted active derived from Centella asiatica.

Madecassoside is one of the naturally occurring active compounds found within Centella. By using the purified active rather than relying solely on a general botanical extract, the formula can incorporate it for a more specific purpose: helping soothe sensitive-feeling skin and support skin comfort and conditioning.

This reflects the formulation approach behind B² — ingredients aren't included simply because they're familiar or trending. Each active is selected for the role it plays within the complete formula, alongside the hydration and skin-conditioning system.

Vitamin B12 and Copper Peptide in 28N B² Centella Hydration Booster for dry, sensitive-feeling skin and skin conditioning

Two Distinctive Actives

B² pairs Vitamin B12 (Cyanocobalamin) with Copper Tripeptide-1, bringing skin comfort and conditioning into a formula built primarily around hydration.

Vitamin B12 helps comfort dry, tight and sensitive-feeling skin, while Copper Tripeptide-1 provides additional skin-conditioning support to help maintain a smooth, healthy-looking appearance.

These two actives also contribute something immediately recognisable to B²: its colour. Vitamin B12 brings its characteristic pink tone, while Copper Tripeptide-1 contributes its blue tone, helping create B²'s distinctive soft purple-pink appearance.

The colour isn't there simply for aesthetics — it's a visible expression of the actives within the formula, without added artificial colour.

Frequently Asked Questions

Is B² suitable for sensitive skin?

Yes. B² was formulated with sensitive-feeling skin in mind. It combines hydration-focused ingredients with Vitamin B12 and purified Madecassoside to support skin comfort, and contains no added fragrance or essential oils.

As with any new skincare product, we recommend patch testing before first use.

What does “72H Hydration” mean?

B² contains a Saccharide Isomerate moisture-binding complex with ingredient-level efficacy data demonstrating hydration benefits for up to 72 hours, including after rinse-off.*

B² combines this technology with Vitamin B5, Betaine, Glycerin and an oil-soluble Hyaluronic Acid derivative as part of a multi-pathway hydration system.

The 72-hour claim is based on efficacy data for the Saccharide Isomerate complex. The finished B² formula has not been independently tested for 72-hour hydration.

Is B² just another Hyaluronic Acid serum?

No. Hyaluronic Acid is only one part of the B² hydration system.

B² combines moisture-binding sugars, Vitamin B5, Betaine, Glycerin and an oil-soluble Hyaluronic Acid derivative to support hydration through multiple pathways, while Vitamin B12 and purified Madecassoside help support skin comfort.

This question is very important because it reinforces the differentiation we've been building.

What type of Centella does B² contain?

B² uses purified Madecassoside, a targeted active derived from Centella asiatica.

Rather than relying solely on a generic Centella extract, purified Madecassoside was selected for its specific role in helping soothe sensitive-feeling skin and support skin comfort.

Why is B² pink? Does it contain artificial colour?

The distinctive colour of B² comes from Vitamin B12 (Cyanocobalamin) and its interaction with the naturally coloured ingredients within the formula.

No artificial colour is added simply to make B² pink.

I'd use this wording rather than saying the colour comes only from B12, since we discussed that the final shade comes from the combination of the naturally coloured ingredients.

What is the difference between B² and 3D Barrier Defence?

They have different roles in the routine.

B² Centella Hydration Booster focuses on lightweight, multi-pathway hydration and skin comfort and is designed to be used early in your serum routine.

3D Barrier Defence focuses more specifically on supporting the skin barrier and is used later in the routine.

They can also be used together: apply B² first, followed by targeted serums if used, then 3D Barrier Defence.

When should I apply B² in my skincare routine?

Apply B² after cleansing and before targeted treatment serums.

A typical 28N routine would be:

Cleanser → B² → A⁶ / B⁶ / Vitamin C Booster → 3D Barrier Defence or moisturiser → SPF in the morning

B² can also be used on its own when your skin simply needs lightweight hydration and comfort.

Can I use B² with A⁶, B⁶ and Vitamin C Booster?

Yes. B² was designed to fit easily alongside targeted active skincare.

Its lightweight hydration-first format makes it suitable as a prep step before A⁶ Anti-Ageing Formula, B⁶ Brightening Formula or Vitamin C Booster.

Can I use B² morning and night?

Yes. B² can be used in both your morning and evening routine.

Apply a small amount to clean skin and allow it to absorb before applying your next serum, moisturiser or sunscreen.

Who is B² best for?

B² is designed for skin experiencing dehydration, dryness, tightness or sensitivity-related discomfort, as well as anyone looking for a lightweight hydration layer before targeted active serums.

It can be particularly useful when your skin feels tight after cleansing or when you want additional hydration without adding a heavy cream.