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We start you on the strong ones: findings that have been replicated or come from one large, well-controlled study. Moderate and weak facts are here too, labeled for what they are. Use “Link to this fact” to share a single card.
Green, natural and unscented / Self-reported survey
'Fragrance-free'/'unscented' deodorant claims are not a reliable guarantee for fragrance-allergic people: in a cited patient survey, 4.7% of fragrance-contact-allergic patients who had used an unscented deodorant in the past 3 months got a rash from it.
Weak evidence: Figure is relayed from Lysdal and Johansen 2009, not Klaschka's own data; not in our evidence base as a primary yet.
Source: Klaschka 2012, International Journal of Hygiene and Environmental Health Link to this fact
Information, not medical advice. See also: myths we won’t tell you.