Dr. Berg’s Healthy Keto and Intermittent Fasting Podcast

11 Things You’re Putting on Your Face That Are Secretly Destroying Your Skin

14 snips
Nov 20, 2025
Discover the surprising ingredients that could be harming your skin! Straight apple cider vinegar is too acidic and should be heavily diluted. Beware of lemon juice and bergamot, which can cause serious reactions in sunlight. Essential oils might be too potent for delicate facial skin. Rubbing alcohol and hydrogen peroxide can dry and damage, while baking soda disrupts skin's natural balance. Learn why topical steroids and aggressive exfoliation should be avoided to keep your skin healthy and radiant!
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INSIGHT

Skin's Acid Mantle Protects Microbes

  • The face has an acid mantle with a pH around 4.5–5.5 that protects skin health and supports microbes.
  • Disrupting this acidic environment causes redness, rashes, acne, and dry skin.
ADVICE

Never Use Undiluted Apple Cider Vinegar

  • Avoid applying straight apple cider vinegar to your face because its pH can be as low as 2–3 and causes irritation.
  • If you must use it, dilute one teaspoon in eight ounces of water before applying.
ANECDOTE

Vinegar Killed The Lawn Example

  • Dr. Eric Berg DC shared that spraying apple cider vinegar killed grass and weeds within two days as an example of its potency.
  • He used this to illustrate why undiluted vinegar damages skin.
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