Super Hipster vs Period Underwear Hipster: which is safer?

Where these two actually differ

• We flag Azo dyes and synthetic dyes and Allergic contact dermatitis from dyes or finishes on the Aisle and not on the Aisle.
• We flag Formaldehyde resins in textile finishing, Azo dyes and colorfast residues, Bamboo viscose processing chemicals and Elastic and synthetic trim degradation on the Aisle and not on the Aisle.
• The Aisle is Organic cotton, wood pulp fiber where the Aisle is organic cotton, bamboo, gusseted absorbent layers, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.