Science
Mechanism of Action
This extract acts as a proficient humectant, effectively drawing and retaining moisture within the stratum corneum to significantly enhance skin hydration and reduce transepidermal water loss. Its rich phytochemical profile, including unsaturated fatty acids, polyphenols, tannins, flavonoids, and saponins, confers robust antioxidant defense against environmental stressors. Naturally occurring enzymes within the pumpkin contribute to gentle enzymatic exfoliation, aiding in the breakdown of dead skin cells for a brighter, refined skin surface. Furthermore, the ingredient helps mitigate hyperpigmentation by potentially modulating melanosome transfer, and exhibits anti-inflammatory properties. Components like zinc and magnesium contribute to oil production regulation, reduction of redness, and clarifying blemish-prone skin. The fatty acids present also reinforce the skin's natural barrier, maintaining integrity and optimal moisture balance.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 An in vitro study demonstrated that Cucurbita spp. peel extracts were non-cytotoxic for human keratinocytes at a concentration of 1000 µg/mL (0.1%), suggesting a non-irritant profile for the skin.
- 02 Shampoo formulations incorporating Cucurbita maxima extract at 1%, 2%, and 3% exhibited favorable physical characteristics, including organoleptic properties, homogeneity, pH, viscosity, foam height, and stability.
Transparency
Dusting Analysis
Cucurbita Maxima Phytoplacenta Extract offers a diverse range of active benefits—including humectant, antioxidant, enzymatic exfoliation, and anti-inflammatory properties. This multi-functional profile indicates it is typically formulated at levels intended to achieve active biological effects, rather than for token inclusion.
The Formula
Formulation
Stability
The extract is commonly prepared within water and glycerin bases, suggesting good stability in aqueous and glycerin-rich formulations. While not specific to this phytoplacenta extract, related pumpkin seed proteins demonstrate solubility influenced by pH and ionic strength, factors which may also impact the overall stability of the extract.
Safety
Safety Profile
Generally regarded as safe for cosmetic applications. In vitro research on Cucurbita spp. peel extracts indicated they are non-cytotoxic and non-irritant for human skin up to 0.1% concentration. The European Commission's CosIng database lists 'Cucurbita Pepo (Pumpkin) Phytoplacenta Extract' with functions such as skin conditioning, humectant, and skin protecting, without specific SCCS opinions available. No identified GHS classifications or hazard statements were found for Cucurbita maxima fruit extract.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly versatile botanical extract, offering multi-faceted benefits ranging from deep hydration and barrier reinforcement to significant antioxidant protection, gentle enzymatic exfoliation, and targeted support for hyperpigmentation and blemish-prone skin.
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