Bombax Costatum Leaf Cell 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: June 23, 2025
Share:
Inside this article:

All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Bombax Costatum Leaf Cell Extract?

Bombax Costatum Leaf Cell Extract comes from the leaves of Bombax costatum, a tall flowering tree native to West Africa sometimes called the red silk cotton tree. In modern cosmetic labs scientists take a tiny sample of leaf tissue and grow it in a sterile nutrient solution. This plant cell culture method lets them produce a steady, clean supply of the extract without harvesting large numbers of trees, which helps protect natural forests. After the cells grow, the liquid is filtered and concentrated to collect the beneficial compounds.

The extract mainly contains antioxidants such as polyphenols and flavonoids. These molecules help shield the plant from harsh sun and dry winds in its native habitat, and they can offer the same protective effect for skin. Because of its antioxidant punch the ingredient found its way into skincare in the last decade as brands looked for sustainable plant sources that also deliver visible results.

You will most often see Bombax Costatum Leaf Cell Extract in face serums, day creams, night creams, sheet masks, eye treatments and other products that target dullness and early signs of aging. It blends well with hydrating agents and vitamins, so formulators like to pair it with ingredients such as hyaluronic acid and vitamin C to create multi-benefit products.

Bombax Costatum Leaf Cell Extract’s Cosmetic Benefits/Uses

As an antioxidant Bombax Costatum Leaf Cell Extract helps defend skin against the daily assault of pollution UV light and other sources of free radicals. By neutralizing these unstable molecules it supports a smoother brighter complexion and can slow the look of fine lines. Its protective action can also help keep the overall formula stable, so the product itself stays fresh longer.

Who Can Use Bombax Costatum Leaf Cell Extract

Because it is a gentle antioxidant with no added fragrance or essential oils, Bombax Costatum Leaf Cell Extract is generally well suited to dry, normal, oily and combination skin. Sensitive skin usually tolerates it too, thanks to its low potential for irritation. Anyone with an allergy to the silk cotton tree or the Malvaceae plant family should steer clear, as cross reactions are possible.

The ingredient is produced entirely from plant cell culture without animal derivatives, so products containing it are typically appropriate for vegetarians and vegans. Always check the full ingredient list in case other components in the formula are not plant based.

No data show that Bombax Costatum Leaf Cell Extract poses a risk to women who are pregnant or breastfeeding. That said, this is not medical advice and anyone expecting or nursing should run new skincare products by a doctor to be safe.

The extract does not cause photosensitivity. In fact, its antioxidant action can help skin handle environmental stressors that come with sun exposure, though you should still wear sunscreen daily.

Potential Side Effects/Adverse Reactions

Side effects from topical Bombax Costatum Leaf Cell Extract can vary by individual. The points below list potential reactions that could happen in rare cases. When the ingredient is used at appropriate levels most people will not notice any of these issues.

  • Mild redness or warmth
  • Itching or stinging on application
  • Dryness or tight feeling
  • Localized rash or hives due to allergy
  • Contact dermatitis in those sensitive to the Malvaceae family

If you experience any of the above reactions stop using the product and consult a healthcare professional

Comedogenic Rating

Rating: 0/5 (non-comedogenic)

Bombax Costatum Leaf Cell Extract is a water based antioxidant with no heavy oils or waxes so it does not clog pores. Its molecules are small and lightweight which lets them rinse or absorb without leaving residue. For these reasons the extract is friendly to skin that breaks out easily and can be used in acne focused routines.

Keep in mind that a product’s overall pore clogging potential depends on every ingredient in the formula not just the extract itself.

Summary

Bombax Costatum Leaf Cell Extract brings mainly one benefit to skincare: antioxidant protection. Its polyphenols and flavonoids neutralize free radicals from sunlight pollution and stress which helps skin look brighter and keeps early lines at bay. That same action can also slow the oxidation of other ingredients so the whole product stays effective longer.

Right now the extract is more of a niche player than a household name. You will see it in select serums and creams particularly those marketed as clean or sustainably sourced. As brands keep hunting for fresh plant actives its presence is likely to grow.

Safety data so far point to a low risk profile with very rare reports of irritation or allergy. Still every skin is different so it is smart to patch test any new product that features Bombax Costatum Leaf Cell Extract before applying it to the full face.

Was this article helpful?
More from Glooshi:
ADVERTISEMENT
Get all our top headlines in beauty.
Delivered right to your inbox each week. Zero spam, all goodness, opt-out at anytime.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get the latest beauty news, top product recommendations & brand-exclusive discount codes direct to your inbox.
Send good feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send bad feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Search