Clinical boundary
Safety comes before shopping
Sift supports cautious, over-the-counter cosmetic care. It does not diagnose a condition, choose prescription treatment, or replace urgent or in-person care.
Reviewed 31 July 2026
When the product flow stops
- Breathing difficulty, facial or tongue swelling, fainting, or a severe rapidly worsening reaction require emergency help.
- Fever, eye pain or vision change, rapidly spreading symptoms, marked swelling, discharge, or an open or infected-looking area need prompt in-person assessment.
- Deep painful bumps, scarring, sudden marked hair loss, or concerning nail changes can require clinician review.
Restricted recommendations
Sift does not recommend prescription-only treatment, oral medication, hormone therapy, or ingestible supplements as a substitute for a clinician. Pregnancy, conception, breastfeeding, allergy, medicine, and diagnosed-condition context can limit the plan.
About consumer spot tests
Trying a product on a small area can reveal obvious irritation for some people, but it cannot guarantee safety and is not the same as clinician-supervised allergy patch testing.