BRIGHT SKIN INCOMING

RADIANT SUPER C
is our high-performance Vitamin C serum designed to brighten, hydrate, target redness and even skin tone.

WORLD FIRST

RADIANT SUPER C

Name: RADIANT SUPER C
Brand: ST.SAJ
SKU: SJ1007
Price: 54.95 AUD
Availability: InStock

Potent Stabilised Vitamin C Illumiscin™-Glow Glycerin

$54.95 Save Liquid error (snippets/product line 591): Computation results in '-Infinity'%

4.8

Rated 4.8 out of 5 stars

Target redness, uneven tone, and dullness with every drop for a brighter, bouncier complexion.

Hydrating

Brightening

Smoothing

Revitalising

Free Aus Shipping on orders over $99

Can be used AM and PM before moisturiser (don't forget SPF in the day!).
Stabilised Vitamin C is a potent antioxidant that targets dark spots and uneven skin tone.
Illumiscin™-Glow leaves skin radiant and glowing.
Salicylic Acid gently exfoliates to unveil smoother, clearer skin.
Plump up the volume with hydrating glycerine.

The ultimate brightening serum for radiant, even-toned skin. Powered by a world first Illumiscin™-Glow, this high performance vitamin C serum targets uneven skin tone, calms redness, boosts luminosity, and delivers intense hydration. Glycerine locks in moisture and strengthens the skin barrier for a plump dewy glow. Salicylic acid refines skin texture for a smoother, clearer complexion. Experience next level skin brightening, hydration, and glow your most radiant skin starts now.

Massage 2-3 drops into face, neck and decolletage AM and PM after cleansing and toning
Lock in place with a moisturiser (don't forget SPF in the day!)

Aqua, Pentylene Glycol, Glycerin, Ascorbyl Tetraisopalmitate, C13-15 Alkane, Ethoxydiglycol, Olive Oil Decyl Esters, Coco-Caprylate/Caprate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Squalene, Hordeum Vulgare Extract, Salicylic Acid, Tocopherol, Xanthan Gum, Sodium Hydroxide, Dehydroacetic Acid, Benzyl Alcohol, Citric Acid.

No artificial colours, parabens, silicones, phthalates, chemical UV filters.

Complete the Routine

CLEANSE WITH

$49.95

CLEAR CLEANSE

TONE WITH

$49.95

PEPTIDE POWER ESSENCE

LOCK WITH

$54.95

SUPREME SKIN 7

Australian Made

VEGAN & CRUELTY FREE

Not just a pretty bottle

This formula combines proven skin-brightening heroes: Vitamin C, Salicylic Acid, and Squalane, with Illumiscin™-Glow, a world-first innovation in radiance tech.

Why You’ll Love It

✔ Brightens dull, uneven skin tone

✔ Calms redness and supports barrier function

✔ Boosts radiance with Illumiscin™-Glow

✔ Refines texture with Salicylic Acid

✔ Plumps and hydrates with Glycerin & Squalane

You can use Radiant Super C morning and night as part of your daily skincare routine.
- In the morning: It’s ideal to apply after cleansing and before moisturiser + SPF. The stable vitamin C helps protect your skin from environmental stressors like pollution and UV exposure.
- At night: It works to brighten and repair while you sleep targeting pigmentation, redness, and dullness.
Thanks to its gentle, non-irritating formula, Radiant Super C is safe to use twice daily for consistent, glowing results.
If you’re using Niaglow Clarity Boost. We recommend you use Niaglow Clarity Boost at night and Radiant Super C in the morning, both can be layered after the Peptide Power Essence and Hyaluronic Smoothing Complex.
Always lock in your serums with Supreme Skin 7 and during the day your favourite SPF.
Yes, Radiant Super C is formulated to be lightweight and stable, making it ideal for dropper bottle packaging. This ensures precise application and easy dispensing.
The 2% stabilised Vitamin C in Radiant Super C refers to Ascorbyl Tetraisopalmitate, a highly stable, oil-soluble form of Vitamin C. Unlike traditional Vitamin C, it remains potent for longer and penetrates deeply into the skin for enhanced efficacy. Hence why its delivery can be in a dropper bottle.
Illumiscin™-Glow is an innovative ingredient specifically designed to promote even skin tone and radiance. It's the first of its kind, combining unique actives that target dullness, discolouration, and uneven texture while being suitable for diverse skin types.
Illumiscin™-Glow works synergistically with other ingredients in the formula to provide visible results without harshness. It’s gentle on the skin yet powerful in delivering a radiant, even complexion over time.

Radiant Super C is designed to:
- Brighten and even out skin tone
- Refine skin texture with gentle salicylic acid
- Deliver deep hydration through glycerin and squalene
- Support skin’s natural barrier for a healthier, more radiant glow
Radiant Super C is formulated with gentle, hydrating ingredients like glycerin, olive oil esters, and squalene, making it suitable for most skin types. However, as with any new product, we recommend a patch test before full use.
Yes! Radiant Super C is 100% vegan and cruelty-free, aligning with our commitment to creating skincare that is kind to both skin and the planet.
Salicylic acid in Radiant Super C is included at a low level to refine skin texture without being overly aggressive. If you’re concerned about sensitivity, start with application every other day and observe how your skin reacts. If irritation does occur, please discontinue use and contact a care provider if irritation persists.

4.8

Rated 4.8 out of 5 stars

Based on 32 reviews

Total 5 star reviews: 29 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 0

94%would recommend this product

Slide 1 selected

Open Okendo Reviews in a new window

Write a Review (Opens in a new window)

32 reviews

Sort

JS
Jane S.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
Superb
Currently in Africa and it is very dry - I brought 3 products - peptide power essence, super c and the st
Sai moisturiser- my skin has stayed soft and radiant!! Highly recommend
Was this helpful?
JN
Jacinda N.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
Amazing
The C serum is incredible! I have been using all St.SAJ
Products since hitting the market can not prase these products enough. I am always told my skin looks and feels soft, smooth and amazing 😍😍😍
Was this helpful?
SG
Stephanie G.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
2 months ago
OBSESSED is an understatement!
Radiant Super C is hands down one of the best Vitamin C serums I’ve ever used. My skin feels brighter, smoother, and more even-toned,. The texture is lightweight, absorbs beautifully, and layers perfectly under makeup or my supreme skin 7 moisturiser . I’ve tried so many Vitamin C products, but this one from St. Saj Skin Care is next level. You can tell it’s made with high-quality ingredients, and the glow it gives is unreal.
If you’re looking for a game-changer in your skincare routine, this is it. St. Saj has me hooked for life
Was this helpful?
BA
Bronwyn A.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
2 months ago
AMAZING 👌
This product is amazing. I have been using it everyday for 4 weeks now. I have noticed my complexion has evened out and feels nice on the skin. I will be incorporating this into my daily routine with all my other ST.SAJ products.
Was this helpful?
C
Chelsea
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
2 months ago
Honestly amazing
After using the St.SAJ Radiant super C for just under two weeks I'm absolutely loving it! Being in the beauty and hair industry myself for the last 20 years, post having children, prioritising good skincare for myself hasn't really happened. But I'm definitely ready to get back to using something that actually gives results. From only using one ST.SAJ product into my routine I have already seen a significant change! My skin feels so much brighter and more even in tone.
Was this helpful?

“Redness, dullness, uneven tone? Not on my watch!”

I wanted a Vitamin C serum that actually worked, sat beautifully under makeup, kept me hydrated and was backed by science.

– Emmylou xx

Cart0 items

RADIANT SUPER C

Complete the Routine

FAQs