Science
Mechanism of Action
This ingredient operates through several distinct mechanisms. Primarily, it contains proteolytic enzymes, predominantly bromelain, and naturally occurring alpha-hydroxy acids (AHAs), which collectively break down surface proteins and loosen dead skin cells, facilitating gentle exfoliation for a smoother, brighter complexion. Its antioxidant capacity stems from vitamins C and E, protecting skin from free radical damage and contributing to an even tone. Furthermore, it exhibits anti-inflammatory properties that help soothe irritation and support damaged skin. The presence of fruit sugars and amino acids endows it with humectant capabilities, attracting and locking moisture into the skin for enhanced hydration and a refined feel. It has also demonstrated anti-acne activity by interfering with bacterial cell membranes, promoting improved skin texture and luminosity.
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 A study demonstrated that bromelain, the primary enzyme, maintained good activity when incorporated at 0.5% (w/w) into various dermatological bases (Carbopol gel, Lanette cream/lotion, Chemyunion® cream/lotion) and stored at 4°C for 90 days, indicating stability within suitable formulations.
- 02 Ananas Sativus Fruit Extract, a closely related cosmetic ingredient, is generally approved for use at concentrations between 0.5% and 5.0% for leave-on products, with higher concentrations potentially causing mild irritation. For rinse-off products, bromelain may be used up to 10%.
Transparency
Dusting Analysis
While beneficial at lower concentrations, exceeding a 5.0% concentration for leave-on products may induce mild skin irritation. This indicates a specific threshold beyond which the ingredient's benefits may be outweighed by potential adverse effects, warranting careful formulation.
The Formula
Formulation
Stability
The active proteolytic enzyme, bromelain, is most stable within a pH range of 5.0 to 8.0. It is highly thermolabile and should not be exposed to temperatures exceeding 40°C. For optimal activity preservation, formulations are best kept refrigerated at 4°C. The ingredient is water-soluble, though bromelain itself may exhibit some sedimentation.
Conflicts
- Metal ions: Activity can be compromised by metal ions; mitigation is possible with chelating agents such as 0.1-0.2% Disodium EDTA.
- High heat: Exposure to temperatures above 40°C should be strictly avoided due to enzyme degradation.
- Positively charged ingredients: Potential incompatibility in anionic bases if bromelain, which is negatively charged above its isoelectric point of 4.6, is intended to maintain its anionic state.
Safety
Safety Profile
While 'HYDROLYZED ANANAS SATIVUS FRUIT' itself lacks specific CIR, SCCS, or FDA reports, 'Ananas Sativus Fruit Extract' is generally recognized as safe for cosmetic use up to 5% concentration. Mild irritation may occur at higher concentrations. EWG Skin Deep rates Hydrolyzed Ananas Sativus Fruit with low concerns for cancer, allergies & immunotoxicity, and developmental/reproductive toxicity, despite noting a lack of specific data for its own rating system. No GHS classifications or hazard statements were identified in available safety databases.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrolyzed Ananas Sativus Fruit is a valuable multi-functional ingredient, offering precise enzymatic and AHA-based exfoliation, antioxidant protection, soothing benefits, and hydration, suitable for a range of skin types within its recommended concentration and strict formulation parameters.
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References
Sources