The Evidence Audit: Why Your Routine Needs a Reality Check
By Michael C. · Written and reviewed by Michael C.
Skincare Science · Published 2026-10-21 · 10 min read · 1506 words
Stop chasing trends and start chasing data; here is how to navigate the science of skincare actives in the South African climate.
Key takeaways
- Skincare efficacy is determined by evidence tiers, not just marketing claims.
- Tier 1 actives like retinol and Vitamin C have the most robust clinical backing for skin health.
- A well-formulated base is as important as the active ingredient itself for stability and penetration.
- Strategic use of AHAs and BHAs is better than daily over-exfoliation for maintaining a healthy skin barrier.
This is a premium briefing. Sign in or see membership plans to read the full article -- free accounts get several full briefings every week.
Source: boldpurity.com (https://boldpurity.com/blogs/ingredient-directory/cosmetic-actives-classification-efficacy-tiers?srsltid=AU7gw4UiY81CdrN6F3qQFxw8kZkzJ0MVbG887vZcRF6mINpES1rNqOk6)
Cover image: Poko Skincare — credit