Skin Conditioning

Cucurbita Pepo Cotyledon Extract

INCI: CUCURBITA PEPO COTYLEDON EXTRACT

Reviewed by Daisy · Last updated 2 Jun 2026

Plant extract from pumpkin seeds that conditions and softens skin and hair

Best For Skin Types

All, Dry, Mature

Addresses

Dryness, Hydration

Usage Frequency

Daily

What Is Cucurbita Pepo Cotyledon Extract?

Cucurbita pepo cotyledon extract is derived from the kernels (cotyledons) of pumpkin seeds. It contains natural compounds including fatty acids, proteins, and phytosterols that have been used traditionally in skincare and haircare formulations.

In cosmetic products, this ingredient functions primarily as a skin and hair conditioning agent. It works by forming a protective layer on the skin's surface and helping to maintain moisture, making it a common addition to creams, serums, and hair treatments aimed at improving texture and suppleness.

How It Works

The extract contains fatty acids and proteins that mimic skin's natural lipid composition. When applied topically, these components adsorb onto the skin's surface, helping to reduce transepidermal water loss and improve the overall feel and appearance of the skin.

The conditioning effect is largely superficial rather than systemic. This makes it well-suited to leave-on formulations where a smooth, comfortable finish is desired without penetrating deeply into the skin.

Clinical Evidence & References

Published clinical research specifically examining this ingredient in isolation is limited. Most evidence comes from traditional use and ingredient supplier data rather than independent peer-reviewed studies.

The ingredient's conditioning properties are supported by its known chemical composition (fatty acids and proteins), though individual clinical efficacy studies in human subjects would strengthen confidence in specific claims. It is generally recognised as a safe and gentle conditioning agent.

How to Use

Cucurbita pepo cotyledon extract is typically used as part of a formulation rather than in isolation. It works well in combination with other hydrating and conditioning ingredients, and can be applied daily as part of your regular skincare or haircare routine. Since it provides surface-level conditioning, layering it under an occlusive moisturiser or oil can enhance its benefits.

Safety & Precautions

Generally well-tolerated and suitable for most skin types. Allergic contact dermatitis is rare but possible, particularly in individuals with known sensitivities to cucurbitaceae plant family members.

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