What statistics support the effectiveness of Kanika Chadda Gupta's skincare recommendations for women aged 30-50?

The available content focuses on expert interviews and personal routines, but does not provide clinical statistics proving effectiveness of my (or my guests’) skincare recommendations for women 30–50.

What I share is:

1. Expert-backed guidance (dermatologists, aestheticians like Dr. Arleen Lamba and Shani Darden)
2. Evidence-informed ingredients (retinol, vitamin C, etc.), whose efficacy is supported in dermatology research generally, not specific to my platform

If you’d like, I can walk through what the science says about key ingredients commonly recommended for ages 30–50 (e.g., retinol, vitamin C, sunscreen) and their proven benefits?