Sources starting with C

• CDC — Sun Safety Facts

  The U.S.

• Centella Asiatica phytochemistry review

  This peer-reviewed Centella asiatica review summarizes botanical compounds and background relevant to conservative skincare ingredient framing.

• Centella Asiatica skin effects review

  This peer-reviewed Centella asiatica review supports cautious ingredient background for calming-looking skincare and barrier-comfort formulas.

• Ceramides and skin function

  PubMed-indexed review on ceramides and skin barrier function.

• CeraVe Acne Foaming Cream Cleanser — Official Product Page

  The CeraVe Acne Foaming Cream Cleanser page documents 4% benzoyl peroxide, ceramides, niacinamide, sodium hyaluronate, price, and positioning.

• CeraVe Moisturizing Cream — Official Product Page

  Official product page for CeraVe Moisturizing Cream.

• CeraVe — Official Eye Repair Cream product page

  The official CeraVe product page for Eye Repair Cream.

• CeraVe Resurfacing Retinol Serum — Official Product Page

  Official product page used for CeraVe Resurfacing Retinol Serum formula facts, positioning, and price.

• CeraVe Skin Renewing Night Cream — Official Product Page

  Official product page used for CeraVe Skin Renewing Night Cream formula facts, positioning, and price checks.

• CeraVe Skin Renewing Vitamin C Serum — Official Product Page

  Official product page used for CeraVe Skin Renewing Vitamin C Serum formula facts, positioning, and price.

• Chaudhuri 2014 — bakuchiol retinol-like functional compound
• Cleveland Clinic — 10 Skin Care Tips From a Dermatologist

  Cleveland Clinic skin-care tips support routine basics for cleansing, exfoliation, sunscreen, and realistic skincare consistency.

• Cleveland Clinic — Niacinamide: What It Is and Skin Benefits

  Cleveland Clinic explains niacinamide as a vitamin B3 skincare ingredient used for tone, redness-prone appearance, hydration, and general routine support.

• Cleveland Clinic — Rosacea

  Cleveland Clinic rosacea guidance supports clinician-punt language for persistent redness, bumps, burning, swelling, or trigger-driven flushing.

• Cleveland Clinic — Sun-Damaged Skin: Photoaging, Signs, Causes & Treatment

  Cleveland Clinic explains sun-damaged skin and photoaging signs, supporting careful cosmetic framing around UV-driven wrinkles and texture.

• Cleveland Clinic — Tips to shrink the look of pores

  Cleveland Clinic guidance explains genetics, oil, aging, sun damage, exfoliation, and retinoid context for reducing pore appearance.

• Cleveland Clinic — What Does Toner Do for Your Face? 5 Benefits

  Cleveland Clinic toner guidance explains what toner does, how it differs from astringent formulas, and where it fits after cleansing.

• Cleveland Clinic — Wrinkles

  A patient-facing health-library reference from Cleveland Clinic covering wrinkles.

• Clinical and cosmeceutical uses of hydroxyacids

  Peer-reviewed review on hydroxyacids, used for AHA/BHA class framing and cosmetic-use context.

• Clinical significance of the water retention and barrier function-improving capabilities of ceramide-containing formulations: A qualitative review

  Review of ceramide-containing formulations and their water-retention and barrier-support context.

• Cosmetic Ingredients Guide — Renovage and Teprenone

  Cosmetic Ingredients Guide summarizes Renovage and Teprenone identity plus manufacturer clinical findings including dilated-pore appearance.

• Croda Beauty — Haloxyl product data

  Croda Beauty product information for Haloxyl, used to verify the ingredient's composition and manufacturer-positioned cosmetic dark-circle mechanism.

• Croda Beauty — Renovage™

  Croda manufacturer data verifies Renovage INCI and supplier claims for moisturising, refined skin grain, tone, redness, and age-spot appearance.