Morus Bombycis Wood Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: July 1, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Morus Bombycis Wood Extract?

Morus Bombycis Wood Extract is derived from the wood of the mulberry tree species Morus bombycis, a member of the Moraceae family. Traditional uses of the mulberry tree in East Asia range from silk production to herbal applications, and over time researchers discovered that its wood contains a rich mix of phenolic compounds, flavonoids and natural sugars with skin friendly properties. To create the cosmetic grade extract, sustainably harvested branches are chipped, dried then soaked in a mix of water and gentle food grade solvents. The liquid is filtered, concentrated and stabilized to preserve its bioactive molecules.

Thanks to its versatile profile, you will spot Morus Bombycis Wood Extract in facial masks, brightening serums, daily moisturizers, soothing aftershave balms and age defense lotions. Brands often pair it with hydrating agents like glycerin or hyaluronic acid to boost overall skin comfort.

Morus Bombycis Wood Extract’s Cosmetic Benefits/Uses

This multitasking plant extract brings several useful actions to skin care formulas

  • Antimicrobial: Helps limit the growth of odor causing and breakout linked surface bacteria, supporting a fresher clearer complexion
  • Antioxidant: Neutralizes free radicals generated by UV rays and pollution which can lead to dullness and fine lines, aiding in the maintenance of youthful looking skin
  • Astringent: Provides a gentle tightening effect that can reduce the appearance of enlarged pores and refine skin texture
  • Emollient: Supplies lightweight conditioning that softens rough patches and improves overall skin smoothness without a greasy feel

Who Can Use Morus Bombycis Wood Extract

Morus Bombycis Wood Extract is generally suitable for all skin types. Its light emollient action supports dry or mature skin while the mild astringent property helps balance oily or combination complexions without stripping moisture. Extremely sensitive skin may still react to any new botanical but this extract is considered gentle overall.

Because it is sourced solely from mulberry wood and requires no animal derivatives during processing, the ingredient fits well within vegan and vegetarian lifestyles.

No reports link Morus Bombycis Wood Extract to hormonal disruption so it is viewed as compatible with pregnancy and breastfeeding. That said, this is not medical advice; anyone who is pregnant or nursing should clear any skincare product with a qualified healthcare provider.

The extract does not make skin more prone to sunburn and can be used day or night without increasing photosensitivity. It also plays nicely with common actives such as niacinamide, peptides and gentle exfoliating acids.

Potential Side Effects/Adverse Reactions

Responses to topical Morus Bombycis Wood Extract differ from person to person. The following is a list of potential side effects but most users will not experience them when the ingredient is formulated and used correctly.

  • Redness or irritation particularly on very sensitive skin
  • Itching or mild stinging during initial applications
  • Dryness or tightness if combined with multiple astringent ingredients
  • Allergic contact dermatitis in individuals with a known mulberry or Moraceae family allergy
  • Rash or hives in rare cases of botanical hypersensitivity

If any negative reaction occurs stop use immediately and consult a healthcare professional.

Comedogenic Rating

Rating: 1 (very low likelihood of clogging pores)

Morus Bombycis Wood Extract is mostly composed of lightweight phenolic compounds and natural sugars rather than heavy oils or waxes that can block follicles. Its mild astringent action can even help keep pores clearer by reducing excess surface sebum. Because of this profile, it is generally considered safe for acne-prone or breakout-prone skin when included at the usual levels found in cosmetic formulas.

The only caveat is the final product’s overall composition. If the extract is delivered in a rich oil base or combined with highly occlusive ingredients, the formula itself could be more comedogenic even though the extract is not. Always look at the full ingredient list to judge pore-clogging potential.

Summary

Morus Bombycis Wood Extract offers four key actions: it fights surface microbes, scavenges skin-aging free radicals, gently tightens pores for a smoother look, and provides light emollience that softens without heaviness. These benefits stem from its natural mix of flavonoids, phenolics and moisturising sugars harvested from mulberry wood.

While not a household name, the ingredient is quietly gaining traction in K-beauty inspired formulations and niche clean beauty ranges thanks to its multitasking nature and plant-based appeal.

Current safety data show a low risk profile with rare reports of irritation or allergy. Still, everyone’s skin is different so it is wise to patch test any new product that features Morus Bombycis Wood Extract before full use.

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