Catalyst MD

Cosmetic whose composition was read from the brand website (website recognised under its name)

List observed on 26 October 2026 on osmosisbeauty.com.

Has the product changed? Photograph the packaging.

Points to note

No ingredient in the recorded list is prohibited in all cases in European Union cosmetics.

1 ingredient is prohibited, except for the exceptions provided for by the regulation: Citrus Grandis (Grapefruit) Peel Oil. Its rule, in the table, says which.

Who it concerns

For each group, the ingredients of the list that an official classification or rule mentions. Open an ingredient's page to read what the text says. A group with no name does not mean the ingredients were judged to have no effect for it.

Prohibition or serious classificationThe text prohibits the substance for this use, or ranks it among the most serious hazards (known or presumed carcinogenic, mutagenic or reprotoxic, identified endocrine disruptor).Worth watchingThe text sets a condition or flags a hazard worth knowing: allergen, suspected effect, condition for children, hazard to the aquatic environment.For informationOfficial information with no condition on a finished product: warning to read, irritation of the pure substance.

• Babies and children

  • Worth watching Zinc GluconateAnnex III, entry 24, sets a condition for children, for these products only: (b) Toothpaste intended for children between 6 months and 1 year of age. “(b) Toothpaste intended for children between 6 months and 1 year of age”

• Skin, eyes and allergies

  • Worth watching Benzyl AlcoholClassified under the CLP Regulation: eye irritation, category 2 (Eye Irrit. 2); skin sensitisation, category 1B (Skin Sens. 1B). Allergen to declare: Annex III, entry 45, requires it to be named in the ingredient list above 0.001% in a leave-on product and 0.01% in a rinse-off product, so that allergic people can avoid it.
  • Worth watching Fragrance*“Parfum” stands for a mixture whose composition does not have to be detailed. Some allergenic substances must nevertheless be named separately in the ingredient list above 0.001% (leave-on product) or 0.01% (rinse-off product). The Regulation names them in 63 entries of its Annex III, for example Linalool, Limonene, Citronellol, Geraniol, Coumarin, Citral, Eugenol or Hexyl Cinnamal: if you are allergic to one of them, look for its name in the list.
  • For information Citric AcidClassified under the CLP Regulation: eye irritation, category 2 (Eye Irrit. 2). This classification describes the pure substance; in a finished product it is far more diluted.
  • For information Potassium SorbateClassified under the CLP Regulation: eye irritation, category 2 (Eye Irrit. 2). This classification describes the pure substance; in a finished product it is far more diluted.
  • For information Sodium HydroxideClassified under the CLP Regulation: skin corrosion, category 1A (Skin Corr. 1A). This classification describes the pure substance; in a finished product it is far more diluted.

• Read on the label

  • For information Sodium HydroxideAnnex III, entry 15a, requires a warning that depends on the type of product: Nail cuticle solvent: “Contains alkali. Avoid contact with eyes. Can cause blindness. Keep out of reach of children”; Hair straightener: “1. Contains alkali. Avoid contact with eyes. Can cause blindness. Keep out of reach of children. 2. For professional use only. Avoid contact with eyes. Can cause blindness”; pH adjuster for depilatories: “Keep out of reach of children. Avoid contact with eyes”. None for: Other uses as pH adjuster.

No official text covers the recognised ingredients for: pregnancy and breastfeeding, environment.

For a question about your own situation (pregnancy, child, allergy), show this list to your doctor, midwife or pharmacist: we cannot say whether this product suits you.

Recorded composition

List recorded on 26 October 2026, before new cosmetic regulation deadlines: ZINC GLUCONATE (Annex III, entry 24): placing on the market of a non-compliant product prohibited from 1 January 2027, sale of a non-compliant product prohibited from 1 July 2028, sale of a non-compliant product prohibited from 1 August 2028 ; BENZYL ALCOHOL (Annex III, entry 45): sale of a non-compliant product prohibited from 1 August 2028. The formula may have changed: check the label of the product on sale.

35 recognised ingredients out of 35.

Hover over or tap a badge for its meaning.

Classified hazard (cancer, DNA, reproduction): Carcinogenic, mutagenic or toxic for reproduction under the CLPEU regulation that classifies chemicals by their hazards (EC No 1272/2008). Regulation, or identified endocrine disruptor. Irritation, allergy and environment: see “Who it concerns”.

Retailer observations

• Seen at osmosisbeauty.com on 26 October 2026: same composition.
• Seen at www.medicobeauty.com on 26 October 2026: different composition, probably an older version.