Kirkland Signature Moisture Shampoo vs SEEN Scalp Clarifying Shampoo, Fragrance Free
SEEN Scalp Clarifying Shampoo, Fragrance Free is the lower-concern pick, scoring 18 points higher on the PlainScore rubric.
Score, factor by factor
Concern49 / 5555 / 55
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. Commonly feared but low-concern ingredients cost nothing.
Transparency12 / 2020 / 20
Whether the full ingredient list, and any fragrance, are actually disclosed. An undisclosed "fragrance/parfum" blend hides its allergens and costs points.
Formulation restraint21 / 2525 / 25
Needless irritant or allergen load for the product type. A clean, purposeful formula scores well without any "free-from" theater.
PlainScore82 / 100100 / 100
The three factors summed: concern out of 55, transparency out of 20, formulation restraint out of 25. Higher is lower concern.
Left column: Kirkland Signature Moisture Shampoo. Right: SEEN Scalp Clarifying Shampoo, Fragrance Free. The bold number wins the factor.
What carries concern in each
Only ingredients with genuine, cited concern or known allergen flags. Commonly feared but low-concern ingredients never count against a score.
Kirkland Signature Moisture Shampoo
- Quaternium-15Watch if sensitive
- FragranceWatch if sensitive
- ChlorphenesinWatch if sensitive
- MethylchloroisothiazolinoneRestricted
- MethylisothiazolinoneRestricted
- Undisclosed “fragrance/parfum” blend: its allergens are hidden.
SEEN Scalp Clarifying Shampoo, Fragrance Free
Nothing on this label carries meaningful, evidence-backed concern.
The two labels share 10 ingredients
Water, Sodium Lauroyl Methyl Isethionate, Glycerin, Glycol Distearate, Hydroxypropyl Guar, Trisodium Ethylenediamine Disuccinate, Phenoxyethanol, Citric Acid, Vitamin E, Ethylhexylglycerin
Scored against the PlainScore method; every flag is evidence-graded and cited on its ingredient page. Cosmetic information for general education, not medical advice.