Laetiporus Sulphureus Mycelium 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 Laetiporus Sulphureus Mycelium Extract?

Laetiporus Sulphureus Mycelium Extract is a cosmetic ingredient obtained from the cultured mycelium of the Laetiporus sulphureus mushroom, sometimes called chicken of the woods. Scientists grow the fungus in a sterile liquid broth, allowing the thread-like mycelium to release a mix of sugars, amino acids, antioxidants and small peptides into the liquid. Once the growth phase is complete the broth is filtered, and the valuable soluble fraction is concentrated and dried to create the final extract.

This mushroom has a long tradition in food and folk care, but its move into beauty products is recent. Researchers looking for plant based alternatives to synthetic skin conditioners discovered that Laetiporus sulphureus delivers a soft feel and moisture-binding ability similar to well-known humectants. As a result formulators started adding the extract to creams and serums in the late 2010s, especially in clean beauty lines where vegan and sustainably sourced ingredients are favored.

You will most often see Laetiporus Sulphureus Mycelium Extract in daily moisturizers, hydrating masks, soothing lotions, lightweight gel creams and multi-step anti-aging routines. It can appear in both water-based and emulsion formulas thanks to its good solubility and mild nature.

Laetiporus Sulphureus Mycelium Extract’s Cosmetic Benefits/Uses

In skincare formulas this mushroom derivative serves one main purpose.

As a skin conditioning agent Laetiporus Sulphureus Mycelium Extract helps the surface of the skin stay soft smooth and hydrated. Its natural sugars draw water to the upper layers while peptides and antioxidants support a calm comfortable feel. The result is skin that looks plumper feels less tight and holds moisture longer which can enhance the overall performance of moisturizers and soothing treatments.

Who Can Use Laetiporus Sulphureus Mycelium Extract

This mushroom derived extract is gentle enough for most skin types including dry, oily, combination and sensitive skin because it focuses on hydration rather than exfoliation or strong actives. It does not contain common pore cloggers or harsh solvents so acne prone users generally tolerate it well. No specific skin type is advised to avoid the ingredient, though anyone with a known allergy to mushrooms should stay cautious for obvious reasons.

Because the extract comes from a cultivated fungus and no animal-derived processing aids are involved it meets vegan and vegetarian standards. Brands often highlight it in plant based or cruelty free formulas for this reason.

Available safety data does not flag the extract as a concern for pregnant or breastfeeding women when used topically at typical cosmetic levels. Still this is not medical advice and anyone who is expecting or nursing should confirm any skincare choice with a healthcare professional.

Laetiporus Sulphureus Mycelium Extract is not photo-reactive so it does not increase sensitivity to sunlight. Daily sunscreen remains important though for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Laetiporus Sulphureus Mycelium Extract vary from person to person. The points below outline potential side effects though most users experience none when the ingredient is formulated and used correctly.

  • Mild redness or stinging on very reactive skin
  • Itching or rash in individuals allergic to mushrooms or fungal elements
  • Contact dermatitis if combined with other irritants in a formula
  • Eye irritation if the product accidentally gets into the eyes

If any uncomfortable reaction develops discontinue use and seek guidance from a qualified medical professional.

Comedogenic Rating

Rating: 0 / 5

Laetiporus Sulphureus Mycelium Extract is water soluble and contains mainly lightweight sugars, amino acids and peptides with negligible oils or waxes, so it does not form a film that could trap sebum or dead cells. Current lab and consumer data show no tendency to clog pores, which is why it receives a zero.

Because of this low rating the ingredient is considered suitable for acne-prone and breakout-prone skin.

No other comedogenic concerns such as fatty alcohols or heavy silicones are typically paired with the extract, but users should still look at the full ingredient list of their product to assess overall pore friendliness.

Summary

Laetiporus Sulphureus Mycelium Extract is chiefly a skin conditioning agent that boosts hydration, softness and comfort. Its natural sugars act like humectants drawing water into the upper layers while small peptides and antioxidants help keep the skin barrier calm and resilient.

Although not yet a household name it is gaining traction in clean beauty lines and niche serums that seek plant based alternatives to synthetic humectants. Formulators appreciate its vegan origin and gentle profile.

Current research and ingredient safety assessments rate it as a low risk addition to topical products with minimal chance of irritation or pore blockage. Still every skin is unique so performing a patch test when trying a new product containing this mushroom extract is a smart precaution.

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