• Cosmedix Simply Brilliant 24/7 Brightening Serum for dark spots, pigmentation and visibly brighter, more even skin.
  • Cosmedix Simply Brilliant 24/7 Brightening Serum with lactic acid, niacinamide and vitamin C for uneven skin tone.
  • Cosmedix Simply Brilliant 24/7 Brightening Serum lightweight formula for dullness, discolouration and post-breakout marks.
  • Cosmedix Simply Brilliant 24/7 Brightening Serum for daily pigmentation correction and a clearer, radiant complexion.
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Cosmedix

Cosmedix Simply Brilliant 24/7 Brightening Serum

Cosmedix Simply Brilliant 24/7 Brightening Serum

$98.25 AUD
$131.00 AUD $98.25 AUD
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Cosmedix Simply Brilliant 24/7 Brightening Serum is a lightweight daily serum that targets dark spots, post-breakout marks, dullness and uneven skin tone for a clearer, more luminous complexion.

Formulated with ten targeted brightening ingredients, this multi-pathway serum combines L-lactic acid with niacinamide, a stable vitamin C derivative, phenylethyl resorcinol and botanical extracts to refine uneven texture and visibly reduce discolouration. Antioxidants help defend against environmental stressors, while the lightweight formula absorbs easily and layers comfortably into both morning and evening routines. With consistent use, skin appears smoother, more even and naturally radiant without relying on hydroquinone or arbutin.

Good to Know: Its hydroquinone-free formula makes it suitable for ongoing maintenance after pigmentation-focused treatments, helping preserve a clearer and more even-looking complexion between appointments.

Product Size: 30ml

What We Love

✓ Targets dark spots, post-breakout marks and uneven skin tone
✓ Combines gentle exfoliation with multi-pathway brightening actives
✓ Helps improve dullness without hydroquinone or arbutin
✓ Provides antioxidant defence against environmental stressors
✓ Lightweight enough for both morning and evening use

Pair It With

Cosmedix Pure C Vitamin C Mixing Crystals

Cosmedix BrillianCy Vitamin C Brightening Face Oil

Cosmedix Glow Mask

Key Ingredients

  • L-Lactic Acid - Gently exfoliates accumulated surface cells to refine texture, improve clarity and reveal a brighter, more even-looking complexion.
  • Whitonyl and Waltheria - Target visible discolouration and help minimise the development of future uneven pigmentation.
  • Niacinamide - Supports the skin barrier while helping reduce the visible appearance of uneven tone and discolouration.
  • 3-O-Ethyl Ascorbic Acid - A stable vitamin C derivative that provides antioxidant support and promotes a more luminous, even appearance.

How To Use

Apply a small amount of Cosmedix Simply Brilliant 24/7 Brightening Serum to freshly cleansed and toned skin morning and evening. Follow with your preferred Cosmedix moisturiser and apply broad-spectrum sunscreen during the day.

Mix Simply Brilliant with Cosmedix Pure C Vitamin C Mixing Crystals for additional brightening and firming effects.

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★★★★★

“I wanted something effective for sun spots that I could use long term. My complexion looks clearer and more refined, and the serum has been easy to incorporate into my routine.”

Lauren, Newcastle NSW

★★★★★

“This layers beautifully under moisturiser and sunscreen and doesn’t leave any stickiness. The uneven pigmentation across my cheeks is gradually looking much more balanced.”

Amelia, Brisbane QLD

★★★★★

“I’ve been using this consistently for around six weeks and the marks left from old breakouts are noticeably softer. My skin also looks brighter overall without feeling over-exfoliated.”

Sophie, Geelong VIC