Cosmetic ingredients safe for malassezia folliculitis, with no triggering oils or fatty acid esters. Evidence-based traffic light for each.
19 ingredients in database · 16 with tier A/B evidence · 16 safe in pregnancy
Malassezia folliculitis (often called «fungal acne» online) looks like uniform 1 to 2 mm itchy papulopustules on the forehead, chest, and upper back. The pathogen is a lipid-dependent yeast – Malassezia globosa and M. furfur – that feeds on fatty acids with chain lengths between C11 and C24. This narrow metabolic window dictates the entire skincare strategy: every ingredient that yeast can digest will worsen the rash, regardless of how «gentle» it is for normal skin.
Ingredients to avoid: olive, coconut, jojoba, argan, almond, avocado oils, isopropyl myristate, isopropyl palmitate, polysorbate 60 and 80, oleic acid, stearic acid, lauric acid, cetearyl alcohol in some formulations, ester-heavy emollients. Esterified vitamin E (tocopheryl acetate) is debated but most clinicians flag it. Fermented ingredients (galactomyces, lactobacillus ferments) feed the yeast and provoke flares.
Safe and active ingredients: ketoconazole 2% (prescription in EU, OTC in US shampoos), ciclopirox olamine, zinc pyrithione 1 to 2%, selenium sulfide 2.5%, climbazole. These act directly on the yeast and clear papules within 2 to 4 weeks of daily use as a leave-on or 10-minute shower mask. Glycerin, propylene glycol, butylene glycol, hyaluronic acid, urea, panthenol, niacinamide, allantoin, and silicones (dimethicone, cyclomethicone) are all safe humectants and emollients. Squalane is the one «oil» that yeast cannot metabolise because it lacks the right ester structure – it became the standard fungal-acne-safe emollient.
Petrolatum
Occlusive emollient made of purified hydrocarbons. Reduces transepidermal water loss by nearly 99% and restores the skin barrier after damage.
Sodium Hyaluronate
Sodium salt of hyaluronic acid. Structurally more stable than the acid itself and more common in formulations. Molecular weight determines behaviour: high-MW (> 1 MDa) holds water at the surface, low-MW (< 50 kDa) penetrates deeper. Cosmetics typically use a mix of MWs. A baseline moisturising active across all segments.
Hyaluronic Acid
Natural polysaccharide that binds water up to 1000 times its own weight. Topical application creates a surface humectant effect without dermal penetration.
Hyaluronic Acid (Low Molecular Weight)
Fragmented hyaluronic acid with a mass <50 kDa. Penetrates the epidermis better than the high-molecular form, but at high concentrations may trigger a pro-inflammatory response.
Glycerin
The simplest trihydric alcohol and one of the most common humectants in cosmetics. Draws water from the environment and retains it in the stratum corneum.
Evigrade currently tracks 19 ingredients in the «fungal acne safe» category. Of those, 16 carry evidence tier A or B.
16 ingredients in this category are flagged as safe during pregnancy at typical cosmetic concentrations. Always confirm the choice with an OB-GYN.
16 ingredients in this category show both low irritation potential and low allergen risk, making them safe even for reactive and sensitised skin. A patch test is still advisable before first use.
Start with a single high-evidence ingredient (tier A or B) at a low concentration, 2–3 times per week. After 2–3 weeks without reaction, frequency can be increased. Do not introduce two new actives at once – if skin reacts, you won't know which one caused it.
Other categories
Occlusive emollient made of purified hydrocarbons. Reduces transepidermal water loss by nearly 99% and restores the skin barrier after damage
Sodium salt of hyaluronic acid. Structurally more stable than the acid itself and more common in formulations. Molecular weight determines behaviour: high-MW (> 1 MDa) holds water at the surface, low-MW (< 50 kDa) penetrates deeper. Cosmetics typically use a mix of MWs. A baseline moisturising active across all segments
Natural polysaccharide that binds water up to 1000 times its own weight. Topical application creates a surface humectant effect without dermal penetration
Fragmented hyaluronic acid with a mass <50 kDa. Penetrates the epidermis better than the high-molecular form, but at high concentrations may trigger a pro-inflammatory response
The simplest trihydric alcohol and one of the most common humectants in cosmetics. Draws water from the environment and retains it in the stratum corneum
Silicone polymer that forms a protective film on the skin to lock in moisture. Gives products a silky texture and does not penetrate the dermis
Cross-linked form of dimethicone, a polymer network of siloxane chains. Functions as a thickener, emulsion stabiliser, and texture modifier – providing the characteristic 'silky-powder' feel loved in primers and mattifying bases. Visually fills fine skin irregularities and wrinkles. Non-comedogenic. A common component in blurring effects in sunscreens and foundation bases
Silicone polymer with hydroxyl groups at chain ends. Forms a breathable film and holds moisture in the stratum corneum
Lightweight emollient derived from coconut or palm kernel oil. Non-comedogenic, absorbs quickly, and is used as a replacement for heavier oils
Imidazole derivative against Malassezia. Often paired with zinc pyrithione or piroctone olamine in anti-dandruff shampoos and seborrheic dermatitis products
Purified cosmetic-grade liquid hydrocarbon oil. Works as a mild occlusive, reduces moisture loss and tolerates the skin as well as petrolatum
A natural moisturizing factor (NMF) present in the stratum corneum. Low concentrations moisturize; high concentrations act as a keratolytic. The gold standard for hyperkeratosis and xerosis
Vitamin B3 form with a wide action spectrum: brightens pigmentation, strengthens the barrier, minimizes pores, and reduces sebum production
Second-generation antifungal agent, a zinc pyrithione replacement. Effective against Malassezia – the fungus causing dandruff and seborrheic dermatitis
Plant-derived humectant from corn. Works as a humectant and penetration booster for other actives, replaces propylene glycol in Korean formulas
Beta-hydroxy acid (BHA) with lipophilic properties: penetrates sebaceous glands, dissolves plugs, and exerts anti-inflammatory effects
Elemental sulfur in colloidal form. One of the oldest topical anti-acne ingredients. Disrupts hyperkeratosis at follicular openings and provides mild keratolytic and antibacterial effects. Used for acne and seborrheic dermatitis. The characteristic smell limits patient acceptability
Hydrogenated form of squalene, a natural component of sebum. A lightweight emollient that does not clog pores and restores the lipid barrier
Antifungal active in anti-dandruff shampoos. Suppresses Malassezia, reduces scaling and scalp itch. Since 2022 EU restricts cosmetic use to rinse-off formats only
Practical routine: gentle non-ionic cleanser, an anti-fungal active (Nizoral or Stiefel Skinoren style product) left on the area for 5 minutes, then a humectant-only moisturiser based on glycerin and hyaluronic acid. Sunscreen options are limited – Purito Daily Soft Touch, Beauty of Joseon Relief Sun, and certain mineral SPFs without fatty alcohols work for most patients.