Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

ZINC.

Essential CAS 7440-66-6 / ANTIOXIDANT

Zinc, commonly utilized as Zinc Oxide or Zinc PCA, is a versatile active ingredient known for its protective, soothing, and clarifying properties for the skin.

Summary

Skin-Conditioning Agent Humectant Moisturizer Antimicrobial Sebum Regulator

Science

Mechanism of Action

Zinc Oxide forms a protective barrier, reflecting UV rays and offering anti-inflammatory and antimicrobial benefits. Zinc PCA regulates sebum, targets acne bacteria, and enhances skin hydration and barrier function, stimulating collagen.

Research

Clinical Evidence

High confidence
Effective range 0.05–25%
Optimal

N/A

Key findings

  1. 01 1% Zinc Oxide effectively treats diaper rash.
  2. 02 5% Zinc Oxide manages diaper dermatitis and soothes irritation.
  3. 03 15-25% Zinc Oxide provides SPF 30+ UV protection.
  4. 04 20% Zinc Oxide is effective for wart treatment.
  5. 05 0.05-10% ZnO Nanoparticles show potent wound healing and bactericidal properties.
  6. 06 0.1% minimum Zinc PCA is effective for cosmetic benefits like acne reduction and hydration.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Due to Zinc's diverse forms and broad concentration range for efficacy (e.g., 0.1% for Zinc PCA vs. 15-25% for UV protection), products may underdose it for specific claims, particularly if a lower effective form/concentration isn't clearly specified.

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

Zinc PCA is highly soluble and stable within a pH range of 4-6; outside this range, precipitation may occur. Brief heating during mixing is permissible.

Conflicts

  • Alkaline components
  • Vitamin C
  • Piroctone Olamine
  • Acrylates
  • Saturated plant extracts
  • Tannins

Safety

Safety Profile

CIR Status
Safe as used
Max tested
25%
Sensitization risk Low

CIR deems Zinc Oxide safe as a non-irritant and non-sensitizer in non-nano form, and FDA recognizes it as GRASE up to 25%. Zinc PCA is generally safe for topical use, though excessive concentrations may lead to mild dryness.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Essential

An essential ingredient due to its proven efficacy in UV protection, sebum regulation, acne treatment, and soothing irritated skin, making it suitable for all skin types.

Related

Similar Ingredients

Finding similar ingredients…