There's no single correct answer to this — and anyone who tells you "every other day" or "twice a week" without asking about your hair type first is guessing. The right wash frequency depends on your scalp, hair texture, styling habits, and what you're washing with. Here's how to actually figure out what's right for you.
It Starts With Your Scalp, Not Your Hair
Your scalp produces natural oil (sebum) to protect and condition your hair. How quickly that oil builds up — and how your hair looks and feels when it does — is really what determines wash frequency, not some universal rule.
Oily scalp: If your roots look flat or greasy within a day of washing, your scalp is producing oil quickly. Washing every 1–2 days is often more comfortable, ideally with a gentle, balancing shampoo rather than anything harsh that strips oil and triggers your scalp to overcompensate by producing even more.
Normal to dry scalp: Most people fall somewhere in the middle and do well washing every 2–3 days.
Very dry or curly/coily hair: Oil takes much longer to travel down the hair shaft in curlier textures, so washing once or twice a week (or even less) is often ideal. Over-washing curly or coily hair is one of the most common causes of dryness and frizz.
Other Things That Change the Answer
- Colour-treated hair fades faster with frequent washing, especially in hot water. Stretching washes and using a colour-safe shampoo helps colour last longer between salon visits.
- Heat styling and sweat (exercise, humidity, Pretoria summer heat) increase how often hair actually needs washing regardless of hair type.
- Product buildup from dry shampoo, styling creams, or heavy oils can make hair look "dirty" faster even if your scalp isn't actually overproducing oil — in this case, the fix is a clarifying wash occasionally, not washing more often overall.
- Chemical treatments (keratin, smoothing, relaxing) usually come with specific aftercare windows — always follow what your stylist recommends immediately after a treatment, since washing too soon can undo the results.
Signs You're Washing Too Often
- Hair feels dry, straw-like, or "crunchy" even right after washing
- Colour fades noticeably faster than expected
- Scalp feels tight, flaky, or irritated
- Ends look damaged despite regular trims
Signs You're Not Washing Often Enough
- Visible oil or flatness at the roots within a day
- Scalp itchiness from buildup
- Hair holds styles poorly because product and oil have accumulated
Finding Your Rhythm
A simple approach: stretch one extra day between washes than you currently do, and see how your hair and scalp respond after two to three weeks (habits take a little time to reset — your scalp may overproduce oil initially if you're used to washing daily, and that settles down). Adjust from there.
The shampoo itself matters too. A refreshing, scalp-focused wash like Tea Tree Special Shampoo works well for anyone washing more frequently since it cleanses without over-stripping, while colour-treated or chemically-treated hair benefits from gentler, bond-friendly formulas.
Shop Tea Tree and the rest of the Paul Mitchell range →
If you're not sure what your hair actually needs — especially after colour, keratin, or smoothing treatments — our stylists can take a look in person and put together a wash and care routine that fits your specific hair, not a generic rule.