Magnolia Kobus Flower/Sarcodon Aspratus 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 Magnolia Kobus Flower/Sarcodon Aspratus Extract?

Magnolia Kobus Flower/Sarcodon Aspratus Extract is a plant-and-fungi duo created by blending the blossoms of the Japanese magnolia tree (Magnolia kobus) with the fruiting bodies of the rare tooth mushroom (Sarcodon aspratus). The magnolia side is naturally rich in polyphenols such as magnolol and honokiol while the mushroom contributes moisture-binding beta glucans plus amino acids and trace minerals. Together they form a water-soluble concentrate that is prized for boosting skin hydration and comfort.

Both botanicals carry a long history in East Asian self-care. Magnolia flowers were traditionally steeped in aromatic baths to calm the senses while the mushroom was consumed in broths for general vitality. Modern formulators noticed their hydrating and soothing potential, so laboratories began capturing the active molecules for topical products in the early 2000s.

The extract is typically produced by gently drying the flowers and mushrooms, grinding them to a fine powder then soaking the mix in a water or glycerin base at controlled temperatures. The liquid is filtered, concentrated and preserved, yielding a clear to pale amber fluid that slots easily into water phases of cosmetic recipes.

You will most often see Magnolia Kobus Flower/Sarcodon Aspratus Extract in sheet masks, hydrating serums, anti aging creams, lightweight moisturizers, soothing after-sun gels and leave-on treatments aimed at dull or stressed skin.

Magnolia Kobus Flower/Sarcodon Aspratus Extract’s Cosmetic Benefits/Uses

In skin care formulas this dual-source extract performs two key jobs that translate into real-world skin perks:

  • Humectant: Draws water from the environment and the deeper layers of the skin to the surface, helping to maintain a plump look and reducing the feeling of tightness. This makes textures feel fresh and keeps lightweight products from drying out on the skin.
  • Skin Conditioning: Softens and smooths the outer layer, supports a healthy skin barrier and can reduce visible flakiness. Regular use leaves the complexion looking more even and comfortable.

Who Can Use Magnolia Kobus Flower/Sarcodon Aspratus Extract

This extract is generally well tolerated by all skin types. Dry, dehydrated or mature skin may notice the biggest boost thanks to the humectant properties, while oily and combination skin can enjoy lightweight hydration without added greasiness. Sensitive complexions usually do fine because the ingredient lacks common irritants, although anyone with known allergies to magnolia or mushrooms should proceed cautiously.

Because both magnolia flowers and the Sarcodon mushroom are non-animal sources, the extract is suitable for vegans and vegetarians provided the finished product does not contain animal-derived additives elsewhere in the formula.

Current data shows no specific contraindications for pregnant or breastfeeding women, but this is not medical advice. Anyone expecting or nursing should check with their healthcare provider before adding new skincare items, just to stay on the safe side.

The extract does not make skin more sensitive to sunlight and can be used day or night without increasing the risk of sunburn. As with any humectant, pairing it with an emollient or occlusive moisturizer can help lock in the added water for longer-lasting comfort.

Potential Side Effects/Adverse Reactions

Responses to topical Magnolia Kobus Flower/Sarcodon Aspratus Extract differ from person to person. The effects listed below are only potential issues and most users will not notice any problems when the ingredient is properly formulated into a product.

  • Allergic contact dermatitis – itching, redness or small bumps in those sensitive to magnolia or mushroom proteins
  • Stinging or mild warmth – transient sensation that usually subsides quickly, sometimes felt on highly compromised or freshly exfoliated skin
  • Hives or swelling – rare but possible in individuals with a history of plant or fungal allergies
  • Interaction with strong actives – combining with very high percentages of acids or retinoids might cause temporary irritation for some users

If any of these reactions occur discontinue use immediately and seek advice from a qualified medical professional.

Comedogenic Rating

Rating: 0 / 5

This extract is water based and free of heavy oils or waxes that can block pores so it sits at the very bottom of the comedogenic scale. Its lightweight polyphenols, sugars and beta glucans rinse cleanly and do not form a film that traps sebum or debris.

It is suitable for skin that is prone to acne or frequent breakouts.

Keep in mind overall pore clogging potential depends on the rest of the formula, not just this single ingredient.

Summary

Magnolia Kobus Flower/Sarcodon Aspratus Extract delivers humectant and skin conditioning benefits by drawing water to the surface and smoothing the outer layer. Magnolia flowers bring antioxidant polyphenols while the mushroom offers moisture binding beta glucans which together help skin look plump and feel comfortable.

While not yet a mainstream buzzword it is quietly growing in popularity inside hydrating serums, sheet masks and light creams especially in Asian beauty lines.

Available safety data shows a low risk of irritation for most users. As with any new cosmetic ingredient it is wise to run a small patch test before full use to make sure your skin agrees with it.

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