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OSEA · Body wash

Undaria Algae Body Wash

$32·237 ml·Rinse-off
74
Some concern

Why this score

Concern47 / 55
  • Cocamidopropyl Betaine: watch if sensitive
  • Cocamide MEA: watch if sensitive
  • Fragrance: watch if sensitive

How much genuine, cited concern the ingredients carry, weighted by how much of each is likely present and whether the product stays on or rinses off.

Transparency12 / 20
  • Uses an undisclosed "fragrance/parfum" blend, so its scent allergens are hidden.

Whether the full ingredient list, and any fragrance, are actually disclosed.

Formulation restraint15 / 25
  • 4 known irritant or fragrance-allergen ingredients: Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Cocamide MEA, Fragrance.

Needless irritant or allergen load for the product type. A clean, purposeful formula scores well without any "free-from" theater.

Scored by PlainBody Editorial against the PlainScore method · Label checked July 2026

What’s inside

WaterGenerally safe

The base most products are built on. It carries the other ingredients and has no safety concern.

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Sodium C14-16 Olefin SulfonateWatch if sensitive

A primary cleansing surfactant similar in strength to sodium laureth sulfate, used in many "sulfate-lite" shampoos even though it is itself a sulfonate detergent. CIR concluded it is safe in rinse-off products; it can be drying or irritating for already-sensitized scalps at higher use levels, same as most anionic surfactants.

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GlycerinGenerally safe

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

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Cocamidopropyl BetaineWatch if sensitive

A coconut-derived amphoteric surfactant used to boost foam and mildness in cleansers and shampoos. CIR has reviewed it as safe as used, but it is one of the more established contact-allergy triggers in personal care, usually traced to manufacturing impurities such as amidoamine and dimethylaminopropylamine (DMAPA) rather than the betaine itself. People with a history of eyelid or scalp dermatitis are more likely to react.

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Xanthan GumGenerally safe

Xanthan gum is a microbial-fermentation-derived polysaccharide used to thicken and stabilize textures, similarly common in food. Cosmetic panel review of this and related microbial gums found them safe as used, with no meaningful irritation signal at typical concentrations.

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Sodium Cocoyl IsethionateGenerally safe

A coconut-derived mild surfactant best known as the main cleansing agent in syndet ("soap-free") bars and gentle body washes. It has a good tolerability record and is often chosen specifically for sensitive or eczema-prone skin.

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Cocamide MEAWatch if sensitive

A coconut-derived fatty acid amide used as a foam booster and thickener in shampoos and washes. It is a recognized, if uncommon, contact sensitizer, and because it belongs to the same ethanolamine family reviewed alongside cocamide DEA, formulators are advised to keep it free of nitrosamine-forming contaminants; well-made products with controlled impurity levels are considered acceptable for rinse-off use.

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Jojoba OilGenerally safe

Technically a liquid wax ester rather than a true oil, jojoba closely resembles skin's own sebum and absorbs without feeling greasy. It is well tolerated across skin types, including acne-prone skin, with no significant irritation or comedogenicity signal in the available data.

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Aloe VeraGenerally safe

A plant-derived water or extract used mainly as a soothing humectant filler. Evidence for dramatic skin benefits beyond mild hydration and soothing is limited, but it is well tolerated by most people.

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Coconut OilWatch if sensitive

A rich, solid-at-room-temperature oil that deeply softens dry skin and hair. It is well tolerated overall, but its high lauric acid content is considered comedogenic by many dermatologists, so it can trigger breakouts in people who are acne-prone.

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Saccharide IsomerateGenerally safe

A naturally derived humectant made from fermented plant sugars that draws water into the skin. It is well tolerated in cosmetics and is used to support hydration and skin softness.

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Avocado OilGenerally safe

A rich botanical oil from avocado fruit, used to nourish and soften the skin. It is generally well tolerated across skin types and provides conditioning benefits.

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1,2-HexanediolGenerally safe

A glycol used very widely in Korean and Western skincare as a lightweight humectant, solvent, and gentle preservative-booster, often in place of traditional preservatives. It has a low reported irritation rate at use levels and is graded low concern in published assessments.

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Vitamin EGenerally safe

An antioxidant that helps protect a formula and condition skin. Well tolerated.

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Citric AcidGenerally safe

Used in tiny amounts to set a product to skin-friendly pH. No concern at those levels.

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PhenoxyethanolCommonly feared, low concern

A widely used preservative, safe at the legal limit of 1% or less. Often the "paraben-free" replacement.

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EthylhexylglycerinGenerally safe

A glycerin derivative used as a skin conditioner and preservative booster, often paired with phenoxyethanol to allow lower total preservative levels. It has a low irritation and sensitization profile in safety reviews.

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FragranceWatch if sensitive

An undisclosed scent blend that can contain dozens of components. The single most common cause of cosmetic contact allergy, and the blend is not itemized, so you cannot see what is in it.

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Note: this product hides its scent as an undisclosed “fragrance/parfum” blend, so its specific allergens are not on the label.

Lower-concern alternatives

Same category, higher PlainScore.

Cosmetic information for general education, not medical advice. Concern ratings are evidence-graded and cited on each ingredient page. See how we score.