Emollient

Morus Bombycis Leaf Extract

INCI: MORUS BOMBYCIS LEAF EXTRACT

Reviewed by Emma · Last updated 2 Jun 2026

A plant extract with potential to help even skin tone and reduce hyperpigmentation

Best For Skin Types

All

Addresses

Hyperpigmentation, Uneven tone

Usage Frequency

Daily

What Is Morus Bombycis Leaf Extract?

Morus bombycis leaf extract is derived from the leaves of the mulberry tree (Morus bombycis), a plant native to East Asia with a long history of use in traditional medicine and skincare. The extract contains bioactive compounds including polyphenols and flavonoids, which are responsible for its skin-conditioning properties.

In cosmetic formulations, this ingredient is primarily used for its potential to influence melanin production and support a more even skin tone. It functions as a smoothing agent, helping to refine the appearance of the skin's surface.

How It Works

Morus bombycis leaf extract appears to work primarily by inhibiting tyrosinase, the enzyme responsible for converting amino acids into melanin pigment. By reducing tyrosinase activity, the extract may help slow melanin production at the cellular level, which could translate to less visible hyperpigmentation and a more even complexion over time.

The extract's polyphenol content also contributes antioxidant benefits, potentially helping to neutralise free radicals that can contribute to skin damage and uneven pigmentation.

Clinical Evidence & References

Screening studies have demonstrated that mulberry leaf extracts show inhibitory effects against tyrosinase and L-DOPA oxidation in laboratory settings, placing it among extracts with notable depigmenting potential. However, most published research has been conducted in vitro (in cells or test tubes) rather than in human clinical trials.

Evidence for efficacy in actual skincare products applied to human skin is limited. Further clinical studies would be needed to establish the concentration required for visible results and to determine how consistently it performs across different skin types and pigmentation concerns.

How to Use

Morus bombycis leaf extract is typically found in serums, essences, and creams designed to target uneven tone. For best results, use consistently as directed, as effects on pigmentation tend to develop gradually over weeks to months. Combine with broad-spectrum SPF 30 or higher during the day, as sun exposure can counteract depigmenting efforts and stimulate new melanin production.

Safety & Precautions

Morus bombycis leaf extract is generally well-tolerated in cosmetic formulations. As with any botanical extract, patch testing is advisable for those with known sensitivity to plants in the Moraceae family.

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