Science
Mechanism of Action
This ingredient acts as a humectant and emollient, structurally mimicking collagen-related peptides. Its derivatives can reversibly enhance transdermal permeation by interacting with stratum corneum lipids without damaging skin proteins.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Human studies found acetyl proline at concentrations up to 10% in cream to be a non-irritant and non-sensitizer.
- 02 An in vitro MatTek EpiDerm assay indicated mild irritation for a cream containing 8% acetyl proline.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Highly stable in aqueous solutions, maintaining integrity across a broad pH range of 2 to 9. Optimal formulation typically occurs near physiological pH (5.2-7.0) for skin compatibility.
Conflicts
- Strong oxidizing agents
- N-nitroso compounds (avoid in formulations prone to nitrosamine formation)
Safety
Safety Profile
The CIR Expert Panel concluded Acetyl Proline is safe in current practices of use up to 10% when formulated to be non-irritating, consistent with human studies that found no irritation or sensitization.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Acetyl Proline is a valuable, safe humectant and skin conditioner, broadly tolerated across skin types, with potential to enhance skin hydration and product efficacy.
Related
Similar Ingredients
Finding similar ingredients…