The Liz Moody Podcast

Ask The Doctor: Debunking Skin Care Myths—Slugging, Face Shaving, Red Light, Collagen, Ice Rollers & More with Dr. Whitney Bowe

Aug 4, 2022
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INSIGHT

Red Light Helps Collagen And Inflammation

  • Red light penetrates deeper skin layers and stimulates fibroblasts to produce collagen, improving firmness and reducing fine lines over time.
  • It also provides anti-inflammatory benefits for inflammatory acne but effect size depends on device quality and usage.
ADVICE

Limit Physical Exfoliation

  • Avoid frequent physical exfoliation like dermaplaning as a routine because it removes the stratum corneum and risks barrier damage and infection.
  • Prefer chemical exfoliants (AHAs/BHAs) and limit dermaplaning to light strokes every 1–3 weeks only for removing peach fuzz if needed.
ADVICE

Practical Four‑Night Skin Cycling

  • Use a four-night skin cycling routine: exfoliation night, retinoid night, then two recovery nights focused on hydration and repair.
  • Repeat the cycle to push skin then allow recovery so you avoid chronic irritation and get better long-term results.
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