Mario Badescu · Moisturizer
Mario Badescu Seaweed Night Cream
Lower concern, typical cream formulation with no known PFAS-risk ingredients, but brand offers no transparency.
Mario Badescu Seaweed Night Cream is a water-based cosmetic gel without nonstick, waterproof, or grease-resistant treatment claims, the primary PFAS-risk categories for skincare. The brand makes no PFAS statements (positive or negative).
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water-based gel cream with seaweed extract
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Mario Badescu Seaweed Night Cream is a water-based gel formula with seaweed extract as the marketed active ingredient, supplemented by humectants (likely glycerin) and standard emulsifiers. Water-based formulations generally present lower dermal absorption risk than occlusive oil-based creams, meaning ingredients tend to stay on the skin surface. Seaweed itself contains iodine and trace minerals; the concentration is not typically high enough to trigger thyroid concerns in topical use, but sensitive individuals with iodine allergies should patch-test first.
The brand's record and disclosure
Mario Badescu is a long-established drugstore brand (founded 1964) with no major recalls or regulatory actions on record for this product line. The brand does not publish full ingredient sourcing, third-party testing, or certified claims (no cruelty-free, organic, or dermatologist certification listed). No public statement addresses formulation transparency, heavy metal testing, or fragrance allergen disclosure, which limits independent verification of safety margins.
How it compares in its category
Water-based night creams at this price point (budget drugstore segment) typically skip expensive stabilizers and rely on simpler preservative systems. Mario Badescu's formula is broadly comparable to CeraVe or Cetaphil night moisturizers in simplicity, though neither brand provides unusually detailed safety documentation. Seaweed-specific products occupy a niche; the marketing claim has minimal clinical backing, but the ingredient itself carries no known hazard premium over generic humectants.
If you buy it
Apply a small amount (dime-sized) to clean skin 2-3 times weekly initially to assess tolerance; iodine sensitivity or kelp allergy warrant a 24-hour patch test on the inner arm first. Store in a cool, dark cabinet away from direct sunlight to preserve preservative efficacy and prevent water separation. Discontinue and consult a dermatologist if redness, burning, or rash develops within 48 hours. Replace the container every 12 months or if the formula separates, smells off, or discolors, as water-based formulas are prone to microbial growth if seal degrades.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Fragrance allergens (undisclosed)
Product contains fragrance but ingredient list does not itemize specific fragrance compounds; sensitive individuals cannot identify trigger allergens beforehand. Fragrance in water-based formulas is typically volatile and disperses rapidly, lowering cumulative dose risk.
Preservative efficacy (water-based instability)
Water-based gels require robust preservative systems to prevent bacterial and fungal growth; typical preservatives (parabens, phenoxyethanol) are not disclosed in marketing copy. Once opened, water-based creams degrade faster than oil-based alternatives, increasing contamination risk if stored improperly or used beyond 6-12 months.
Heavy metals in seaweed extract
Seaweed absorbs metals from marine environments; no recalls or test data on record for Mario Badescu products. At typical cosmetic-use concentrations in a rinse-off or leave-on product, dermal exposure to heavy metals from seaweed is negligible, but brand transparency on sourcing is absent.
Formaldehyde releasers (preservative category)
No evidence that Mario Badescu uses DMDM hydantoin or imidazolidinyl urea in this formula; modern drugstore brands generally avoid these outdated releasers. If formulation includes them, they would be labeled; absence from published ingredients suggests low likelihood.
1,4-dioxane (manufacturing contaminant)
Water-based creams with ethoxylated humectants (polysorbate, ceteareth) can harbor trace 1,4-dioxane as a processing byproduct. No testing or recalls exist for this brand; FDA monitoring and voluntary removal from supply chains have reduced prevalence in US drugstore products.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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More moisturizer grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.