Science
Mechanism of Action
Zinc Citrate acts by reducing bacteria, controlling sebum secretion, and supporting skin regeneration. It inhibits acne-causing bacteria and aids in collagen synthesis and DNA repair.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Topical zinc, especially when combined with erythromycin, improved acne more effectively than erythromycin or clindamycin alone.
- 02 Zinc-containing creams generally demonstrated improvement in acne conditions.
Transparency
Dusting Analysis
There is no indication that Zinc Citrate is commonly 'dusted' or used at ineffective concentrations in topical skincare products.
The Formula
Formulation
Stability
Zinc citrate is slightly soluble in water and soluble in diluted acid. Optimal absorption, though noted for oral intake, occurs in moderately acidic conditions (pH 3.5-4.5); a 1% solution has a pH of approximately 6.
Safety
Safety Profile
The CIR deemed it safe with implicit concentration limits for cosmetics. Undiluted powder tested as an irritant, highlighting the importance of proper formulation and concentration.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Zinc Citrate is a valuable multi-functional ingredient, particularly for acne-prone skin, offering antimicrobial, anti-inflammatory, and sebum-regulating benefits within appropriate formulations.
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References
Sources