Description
The CSA Philosophy (Vitamin C + Sunscreen by day, Vitamin A by night) is globally recognised as one of the most effective approaches to long-term skin health and age prevention. This expertly curated routine features Crystal Retinal 3, making it the perfect entry-level CSA system for those new to vitamin A or seeking a well-tolerated introduction to advanced skin renewal.
What’s Inside the Routine:
C-Tetra® Advanced Vitamin C Serum
A powerful 20% vitamin C gel-serum that helps brighten the complexion, improve skin tone and support collagen for firmer, more radiant-looking skin. Provides daily antioxidant protection against environmental stressors.
Advanced Day Ultimate Protect™ SPF 50+ | PA++++
A lightweight daily moisturiser offering very high UVA and UVB protection, enhanced with photolyase technology to support skin exposed to environmental aggressors. An essential step for preserving results and supporting long-term skin health.
Crystal Retinal® 3 (Night Serum)
A medium-strength retinaldehyde serum designed to support overnight skin renewal, refine texture and soften the appearance of fine lines. Crystal Retinal works up to 11x faster than traditional retinol*, delivering visible results with a streamlined routine.
*Compared to retinol.
Why This CSA Routine Works:
-
Brightens and improves overall skin tone
-
Supports collagen and skin renewal overnight
-
Helps refine texture and early signs of ageing
-
Provides very high daily UV and environmental protection
-
Designed for consistent, long-term skin health
How to Use:
Morning
-
Cleanse
-
Apply C-Tetra® Advanced
-
Finish with Advanced Day Ultimate Protect™ SPF 50+
Evening
-
Cleanse
-
Apply Crystal Retinal® 3 (2–3 nights per week initially, increasing gradually)
-
Follow with moisturiser
The Result:
Skin that looks brighter, smoother and more refined — protected by day and renewed by night.
