numbuzin No.5+ in Australia: The Glutathione and Vitamin Brightening Routine, Step by Step

There is a particular frustration that every skincare shopper knows: skin that is perfectly healthy, but just looks a bit tired, a bit uneven, a bit flat. No.5+ is numbuzin's answer to that mood. It is the brightening line, built around vitamin C and glutathione, and it has a following precisely because it is easy to understand: five means colour.

The Beauty Desk · numbuzin · 8 minute read

If you have searched for numbuzin no 5, numbuzin glutathione or numbuzin vitamin serum, this is the routine. The numbering guide is in our numbuzin numbers guide, and everything is in the numbuzin collection.

What No.5+ is about

Reviewers and retailers describe the No.5 line as the colour line: aimed at dull-looking tone, uneven-looking skin and the marks that linger after breakouts, with vitamin C and glutathione as the headline ingredients. A guide noted that the plus flags the higher-concentration, upgraded products in the brightening line.

Step one: cleanse

The No. 5+ Glutathione C Facial Spa Cleansing Oil ($29.95) is the oil step. It pairs with a gentle foam, such as the No.3 Rice Enzyme Skin Softening Cleansing Foam ($22.00).

Step two: tone

The No.5+ Vitamin Boosting Essential Toner ($26.00) is the liquid toner. The No. 5+ Vitamin Niacinamide Concentrated Toner Pads ($29.95) are the pad version.

Step three: treat

The No. 5+ Glutathione Vitamin Concentrated Serum ($29.99) is the everyday serum. The No.5+ Glutathione TXA Advanced Dark Spot Ampoule Concentrate ($28.95) is the more targeted step. Introduce one at a time.

Step four: moisturise

The No. 5+ Vitamin Glutathione Dark Spot Laser Cream ($32.00) is the finishing cream.

Weekly: the mask

The No.5+ Vitamin Spotlight Sheet Mask ($19.99) is the weekly treat.

The non-negotiable: sunscreen

Any brightening-feel routine only makes sense with daily sun protection. Australian guidance is SPF50+ in the morning, reapplied every two hours outdoors. Without it, you are undoing the work. Hats and shade matter too.

How long to wait

Reviewers say consistent use over several weeks is what matters, not one dramatic week. Give a product a month before judging it, and add only one new product at a time.

Around Australia

• Sydney, NSW: serum by day only with sunscreen.
• Melbourne, VIC: add the cream in winter.
• Brisbane and the Gold Coast, QLD: strong sun care.
• Perth, WA: strong UV; sunscreen first.
• Adelaide, SA: swap with the season.
• Canberra, ACT: dry air; the cream.
• Hobart, TAS: richer layers.
• Darwin, NT: light texture, high SPF.

Where we fit in

Eastern Curlew is an authorised numbuzin stockist and we dispatch from Sydney. We sell the products mentioned, so weigh our view accordingly. Prices come from the live product pages and can change.

Frequently asked questions

What is numbuzin No.5+?
The brightening line, built around vitamin C and glutathione.

Do I need sunscreen with it?
Yes, every morning.

Where do I start in the No.5+ line?
Most people start with the Glutathione Vitamin Concentrated Serum.

How much is numbuzin No.5+ in Australia?
Most products are $19.99 to $32.00 at Eastern Curlew.

Where can I buy numbuzin in Australia?
From Eastern Curlew, an authorised stockist, dispatched from Sydney.

This article is general information only. It is not medical advice and does not replace advice from a doctor or dermatologist. Results vary from person to person, and you should patch test new products. This guide draws on our own product pages and on published reviews and editorial coverage from Australian and international beauty and K-beauty publications and independent reviewers. Product information may change. Last checked: 10 November 2026.