The Risks of Baking Soda on Facial Skin
pH Disruption: Baking soda is highly alkaline (pH of ~9), while healthy human skin has an acidic natural pH barrier (pH 4.5–5.5). Applying baking soda strips the skin’s moisture barrier, leading to severe dryness, redness, and irritation.
Irritation & Chemical Burns: The coarse particles act as an aggressive abrasive that can cause micro-tears, burning, and increased sensitivity.
Worsened Dark Circles & Hyperpigmentation: For delicate under-eye skin, harsh irritation can actually trigger post-inflammatory hyperpigmentation, making dark circles worse.
Evidence-Based Alternatives for Skin Concerns
If you are looking to address dark spots, fine lines, or under-eye circles safely, dermatologists recommend these ingredients:
Dark Spots & Hyperpigmentation:
Vitamin C serum (inhibits melanin production)
Niacinamide (brightens and evens skin tone)
Alpha Arbutin or Azelaic Acid
Wrinkles & Fine Lines:
Retinol or Retinoids (boosts collagen production)
Peptide serums
Broad-spectrum sunscreen (prevents further damage)
Under-Eye Dark Circles:
Caffeine-infused eye creams (constricts blood vessels to reduce puffiness and shadowing)
Hyaluronic acid (hydrates and plumps thin skin)