Croton Lechleri Resin: 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 24, 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 Croton Lechleri Resin?

Croton Lechleri Resin is the thick red sap that oozes from the bark of the Croton lechleri tree, a species native to the upper Amazon basin and part of the Euphorbiaceae family. Often nicknamed “dragon’s blood” because of its deep crimson color, the resin is naturally rich in antioxidant phenolic compounds such as proanthocyanidins and the alkaloid taspine. Indigenous communities have long relied on the sap as a topical protectant, a practice that drew the attention of modern formulators looking for plant based antioxidants. To harvest the ingredient, workers make small incisions in the tree’s bark, collect the liquid resin, then filter and concentrate it to create a cosmetic grade extract while ensuring the trees remain unharmed. Today manufacturers incorporate Croton Lechleri Resin into anti aging serums, barrier repair creams, soothing masks, after sun gels, spot treatments and a growing range of moisturizers that aim to defend skin from environmental stressors.

Croton Lechleri Resin’s Cosmetic Benefits/Uses

This rainforest resin earns its place in skincare primarily for its strong antioxidant activity. By neutralizing free radicals generated by UV exposure and pollution, it helps limit collagen breakdown, supports a smoother firmer appearance and can extend the shelf life of formulas that contain easily oxidized ingredients.

Who Can Use Croton Lechleri Resin

Croton Lechleri Resin is generally suitable for all skin types, including dry, combination and oily skin. Those with easily irritated or sensitive skin can usually use it too, though the natural tannins may feel a little astringent on very reactive complexions so starting with a lower concentration is wise. Because the resin is harvested from a plant without any animal derived additives it fits vegan and vegetarian lifestyles. Current data shows no specific concerns for people who are pregnant or breastfeeding, yet research is limited, so this is not medical advice and expectant or nursing parents should clear any new product with their doctor first. The ingredient is not known to cause photosensitivity, meaning it will not make skin more prone to sunburn. Its deep red color can leave a temporary tint on very light fabrics or under nails, something to keep in mind when applying.

Potential Side Effects/Adverse Reactions

Side effects and reactions to topical Croton Lechleri Resin vary from person to person. The following points list potential issues, though most users will not experience them when the ingredient is properly formulated and used as directed.

  • Skin irritation – a brief stinging or warming sensation, especially on compromised or freshly exfoliated skin
  • Allergic contact dermatitis – rare itchy red patches in individuals allergic to components of the resin or the Euphorbiaceae family
  • Temporary staining – a faint red tint on skin, nails or light fabrics that fades with washing
  • Interaction with other strong actives – pairing high levels of resin with potent acids or retinoids may heighten dryness for some users

If any unwanted reaction occurs stop using the product and consult a healthcare professional or dermatologist for guidance.

Comedogenic Rating

Rating: 1/5. Croton Lechleri Resin is mostly composed of water soluble phenolics and minimal lightweight resins rather than greasy triglycerides, so it does not readily clog pores. Existing safety and composition data show no significant amount of pore blocking waxes or heavy oils, hence the low score. People who are prone to acne or breakouts can usually use products containing this ingredient without seeing an uptick in comedones, provided the overall formula is also non-comedogenic. If the product pairs the resin with heavier butters or silicones, the comedogenic risk comes from those companions, not the resin itself.

Summary

Croton Lechleri Resin serves mainly as an antioxidant, shielding skin from free radicals that accelerate signs of aging and dullness. Its polyphenols neutralize oxidative stress while also helping stabilize other delicate ingredients in a formula. Interest in “dragon’s blood” has grown in niche clean beauty circles though it is still less common than classics like vitamin C or green tea. Topical use is considered safe for most people with only occasional mild irritation or temporary staining reported. As with any new skincare ingredient, patch test first to make sure your skin agrees before applying it more broadly.

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