Is 30% vitamin C too strong for me?

It is our highest strength, best suited to people who already use vitamin C comfortably, ideally those who have used our 20% without issues. If you are new to vitamin C or have sensitive skin, start with the 10% or 20% and work up. There is no benefit in starting stronger than your skin is ready for.

How do I build up to a 30% vitamin C serum?

Start with evening application two to three times a week, and increase frequency gradually as your skin adjusts. Once your skin is comfortable, you can use it morning and evening if you like. If you notice any sensitivity, drop back the frequency.

What makes the 30% different from the 20% vitamin C?

Just the concentration, 30% versus 20%, in the same clean four-ingredient oil base. The 20% is our most popular everyday strength; the 30% is for experienced users who have built tolerance and want more.

Why is the 30% serum oil-based rather than water-based?

It uses tetrahexyldecyl ascorbate (THD), an oil-soluble, stable form of vitamin C. Oil-based vitamin C resists the oxidation that turns water-based serums brown, is gentler on skin, and needs no preservative because there is no water.

Can I use the 30% serum around my eyes?

Yes, the oil base is gentle enough to double as an eye treatment. Avoid direct contact with your eyes, and patch test first if your skin is reactive.

Professional Strength Vitamin C Serum 30% | Australian Made

Vitamin C Serum strength guide: chart to help you find out which strength of vitamin C serum is best for your skin, from 10% to 30% vitamin C professional strength.

Brighter complexion and more even skin tone. Smooths and minimises the appearance of fine lines. Non irritating and pH balanced, safe for sensitive skin, eczema & rosacea. Non sticky formulation perfect under makeup or sunscreen. Fragrance & preservative free – safe to use around eye area. Formulated & manufactured by practicing wholistic nutritionist. Clean, neutral lemon scent suitable for men and women. Made in Australia

Tetrahexyldecyl Ascorbate A revolutionary form of vitamin C for skincare. Increased stability, does not oxidise on your skin. Skin friendly pH, does not irritate sensitive skin, safe for rosacea and retinol users. Oil soluble, absorbs quickly to work its vitamin C magic in the deeper layers of your. Water soluble ascorbic acid is not absorbed into skin and works only on the surface.

Sourced from olives, NOT shark livers. Squalane is the most effective skin moisturiser you've never heard of. Extremely safe for even the most sensitive and reactive skin. Suitable for both dry & acne-prone skin. Moisturises & hydrates to restore a healthy skin barrier. Identical to lipids found in your skin which decline with age. Leaves your skin feeling wonderfully smooth and hydrated. Although it's an oil, it feels really light and non-greasy. It's safe for all skin types.

Distilled lemon oil Distilled Lemon oil is effective against infection causing bacteria & may help prevent skin inflammation. Fresh clean scent used by Aromatherapists for its ability to uplift, relax and promote a happier mood. Small human studies have shown that the scent of lemon can help to reduce anxiety. Unlike cold pressed lemon oil, the distilled version does not make your skin more sensitive to the sun.

Text about natural vitamin E with a background of nuts, seeds, and vegetables.

Nubeean Noosa

Professional Strength Vitamin C Serum 30% | Australian Made

Name: Professional Strength Vitamin C Serum 30% | Australian Made
Brand: Nubeean Noosa
Price: 43.0 AUD
Availability: InStock

$43

Professional Strength 30% Vitamin C Serum

Our strongest vitamin C, for experienced users

Our most concentrated vitamin C, made in small batches in Noosa by naturopath Sarah Luck. This 30% formula is designed for experienced vitamin C users who've built up tolerance, delivering generous antioxidant support in a nourishing olive squalane base that works with your skin's natural barrier and microbiome.

A Note for New Users

This is our highest strength, designed for experienced vitamin C users. If you're new to vitamin C or have sensitive skin, start with our 10% or 20% formulas. Improving the look of sun damage is a marathon, not a sprint - building up gradually gives your skin the best long-term result.

Best Suited To

Experienced vitamin C users
Regular active-skincare users
Non-sensitive skin types
Skin showing the appearance of sun damage, dark spots and uneven tone

What It Offers

Generous antioxidant support
Supports firmer, brighter-looking skin
A lightweight, oil-based formula that absorbs well
Preservative-free stability

Clean, Concentrated Formula

Just four ingredients:

Olive squalane (barrier-supporting base)
30% vitamin C (tetrahexyldecyl ascorbate)
Natural vitamin E (antioxidant)
Distilled lemon oil (natural brightening) optional

Why This 30% Formula

Made fresh in small batches
No preservatives or fillers
Microbiome-supporting formula
Professional-grade concentration
Stable, non-oxidising formula
Multi-use: serum, moisturiser and eye treatment

Sizes

15ml - AU$43 (ideal size for travel or for patch testing)
30ml - AU$80 (most popular)
100ml - AU$240 (refill size)

Application Tips from Sarah

"For best results with the 30% formula:

Start with evening application 2-3 times a week
Gradually increase frequency as your tolerance builds
Once established, use morning and evening if you like
Always follow with sunscreen during the day
Store somewhere cool and dark to maintain potency"

Who Should Use 30%?

Experienced vitamin C users
Those already using our 20% comfortably
Non-sensitive skin types
Regular active-skincare users

Who Should Choose a Lower Strength?

First-time vitamin C users
Sensitive skin types
Very sun-damaged or reactive skin
Those new to active skincare

How to Use

Cleanse thoroughly
Apply 3-4 drops to face and neck
Allow to absorb for 1-2 minutes
Follow with the rest of your skincare
Always use a natural mineral-based sunscreen during the day

Quality

Fresh, small-batch production
Amber glass packaging with airless pump
Professional-grade ingredients
Australian made in Noosa