Reputation for gentle, non-stripping formula
Many buyers purchased after hearing about its gentle pH 5.5 formula suited for sensitive or barrier-damaged skin, often citing word-of-mouth or online recommendations.
Repeat purchase / brand loyalty
A large number of reviewers explicitly mention this being their 2nd-10th bottle, showing strong repurchase intent driven by satisfaction with prior use.
Pairing with Haruharu Wonder oil cleanser
Several buyers purchased it specifically to pair with the brand's oil cleanser as part of a double-cleansing routine.
Fragrance-free / fungal-acne-safe formulation
Buyers with fungal acne or fragrance sensitivities chose this product because it is marketed and perceived as unscented and safe for reactive skin.
Gifting
Some reviewers bought it as a gift for family members (parents, daughters, aunts) with sensitive or damaged skin.