Frequently Asked Questions

When harsh shampoos strip your scalp's natural oils, it overcompensates by producing more sebum. Meanwhile, your hair ends — far from the oil glands — stay dehydrated. The solution is gentle, pH-balanced cleansing that restores equilibrium rather than stripping.

Shampoo is water-based and can only remove water-soluble dirt. Oil-based buildup from sebum, styling products, and fine dust (PM2.5) stays trapped in your follicles. An oil-based pre-cleanser dissolves what shampoo can't.

2-3 times per week for maintenance. Daily if you live in polluted cities, wear hijab, use heavy styling products, or exercise frequently. The CARETIN Cleansing Oil is gentle enough for everyday use.

Double cleansing uses an oil-based cleanser first to dissolve oil-based impurities, followed by a water-based shampoo to wash away the residue. It's the same concept K-Beauty popularized for facial skincare, now applied to scalp care.

CARETIN is not a medical treatment, but clinical tests show our Cleansing Oil improves scalp microcirculation. A healthy scalp environment supports stronger roots over time. Think of it as prevention, not cure.

Most users feel instant freshness and relief after the first use. Visible improvements — such as less buildup, more balanced oil control, and stronger-looking hair — typically appear within 2–4 weeks of consistent use.