Morus Bombycis (Kuwa) Leaf Extract

What is Morus Bombycis (Kuwa) Leaf Extract?

Morus bombycis, commonly known as Kuwa or Japanese mulberry, is a deciduous tree native to East Asia. Its leaf extract is derived from the fresh or dried leaves through solvent extraction or other botanical processing methods. Chemically, it contains flavonoids, phenolic compounds, and polysaccharides characteristic of Moraceae family plants. In cosmetics, it serves as a skin conditioning-miscellaneous agent, primarily incorporated into leave-on products like creams, lotions, and serums. It functions by forming a lightweight film on the skin surface or interacting with the stratum corneum to reduce roughness, minimize friction, and promote a smoother tactile feel through its emollient-like properties from natural polymers and humectants.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Smoothing
Improves the perceived smoothness of skin or hair by reducing roughness and friction, often through emollients, silicones, or conditioning polymers.

Benefits

Supports smoother skin texture by reducing surface roughness.

Provides conditioning effects for improved skin feel.

Non-comedogenic, suitable for various skin types.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with rough or dry skin seeking texture improvement.
Those with known allergies to mulberry or Moraceae plants.
People preferring botanical conditioning agents in routines.
People experiencing irritation from plant extracts.
Users looking for low-hazard natural extracts.
Individuals preferring synthetic-free or minimal botanical formulas.

Safety Notes

  • Considered low hazard with minimal risk of adverse effects.
  • Non-comedogenic rating indicates low pore-clogging potential.

Frequently Asked Questions about Morus Bombycis (Kuwa) Leaf Extract

What is Morus bombycis leaf extract?

A botanical extract from the leaves of the Japanese mulberry tree, used for skin conditioning.

Is it safe for daily use?

Rated low hazard and suitable for most skin types with low comedogenic potential.

What role does it play in products?

Acts as a smoothing agent to reduce roughness and improve skin feel.