“How often should you wash your hair?” It’s one of the most common haircare questions – and unfortunately, there’s no magic number that works for everyone.
Your ideal wash schedule depends on your hair texture, scalp type, activity levels, styling habits, and even the weather. Someone with fine hair and an oily scalp might feel best washing every second day, while curly or coily hair may thrive with much longer between washes.
Wash too frequently, and you can remove the natural oils that help keep hair and scalp comfortable. Leave it too long and excess oil, sweat, and styling products can build up.
The goal isn’t to follow a rigid hair-washing rule. It’s to find a routine that works for your hair.
Why there’s no single hair washing rule
How often your hair needs washing can be influenced by several factors.
Fine hair can become oily or weighed down more quickly, while thick, curly and coily textures often benefit from longer between washes to help retain moisture. An oily scalp may need more frequent cleansing, while dry hair can benefit from spacing wash days out.
Regular exercise, heat styling and Australia’s heat and humidity can also change what your hair needs from week to week.
As a general starting point:
● Fine hair: Every 2–3 days
● Oily scalp: Every 1–2 days
● Thick hair: Every 3–4 days
● Curly or coily hair: Every 5–7 days
● Colour-treated hair: Every 3–4 days
These aren’t strict rules. If your scalp feels oily, uncomfortable, or weighed down, it may be time to wash. If your hair feels dry after cleansing, consider spacing washes out or switching up your products.
Step 1: Choose the right shampoo for your hair goals
How often you wash matters, but what you wash with matters just as much.
Your shampoo should effectively cleanse your scalp while supporting your individual hair concerns. HASK makes it easy to tailor your routine:
● Oily scalp: Reach for the HASK Tea Tree Oil & Rosemary range to help refresh and balance the scalp.
● Fine or flat hair: Try the HASK Biotin Boost range to support fuller-looking hair with body and bounce.
● Dry or damaged hair: Choose the HASK Argan Oil Repairing range to help restore moisture, softness and shine.
● Frizz and humidity: The HASK Keratin Smooth range helps smooth the hair and manage frizz for softer, more polished results.
Whatever range you choose, focus your shampoo primarily on the scalp and roots, where oil, sweat and buildup accumulate. Massage gently using your fingertips, then rinse thoroughly. There’s usually no need to aggressively scrub the lengths – the shampoo will travel through them as you rinse.
Step 2: Why conditioner should be part of every wash
Think conditioner makes hair greasy or flat? The right conditioner, used correctly, shouldn’t.
Shampoo removes oil and buildup, while conditioner helps replenish moisture and smooth the hair afterwards. Regular conditioning can:
● Reduce tangles and breakage
● Improve softness and shine
● Make hair easier to manage
● Help smooth and protect the hair cuticle
Apply your HASK conditioner mainly from the mid-lengths to the ends, where hair tends to be driest. If you have fine hair or oily roots, avoiding the scalp can help preserve volume and freshness.
In other words: shampoo your roots, condition your ends. Easy.
Step 3: When to add a hair treatment
Sometimes, conditioner needs backup. A weekly deep-conditioning treatment delivers more intensive care, particularly if your hair is regularly coloured, heat-styled, exposed to the sun, or subjected to plenty of swimming.
For dry or damaged hair, try the HASK Argan Oil Repairing Deep Conditioner to replenish moisture, soften and restore healthy-looking shine. If frizz is your biggest concern, the HASK Keratin Smooth Deep Conditioner helps smooth, strengthen, and improve manageability.
For most hair types, once a week is a great starting point. If your hair is particularly dry or you’ve been swimming or heat styling frequently, try increasing treatments to twice weekly and adjust depending on how your hair responds.
Is double shampooing worth it?
Double shampooing has become a popular way to achieve that ultra-clean feeling.
The first shampoo helps remove surface-level oil, sweat, and styling products, while the second can provide a more thorough cleanse.
It can be particularly useful if you:
● Use lots of styling products or dry shampoo
● Have an oily scalp
● Have been swimming
● Exercise heavily and sweat frequently
But double shampooing isn’t automatically better. If your hair is dry, curly, or coily, cleansing twice every wash may be unnecessary and could leave strands feeling drier.
Listen to your hair rather than the trend.
Build your ideal HASK hair care routine
Not sure where to begin? Start with your biggest hair goal and build your routine around it.
● To balance an oily scalp: Start with the HASK Tea Tree Oil & Rosemary Shampoo, follow with the matching conditioner, and introduce a hydrating treatment when your lengths and ends need extra moisture.
● To repair dry or damaged hair: Use the HASK Argan Oil Repairing Shampoo and Conditioner, adding the Argan Oil Repairing Deep Conditioner once a week for a more intensive moisture boost.
● To add volume: Reach for the HASK Biotin Boost Shampoo and Conditioner to help create fuller-looking, bouncier hair. Add a lightweight nourishing treatment when needed without overloading fine strands.
● To smooth frizz: Build your routine around the HASK Keratin Smooth Shampoo and Conditioner, then use the Keratin Smooth Deep Conditioner weekly for extra smoothing and strengthening care.
The best routine is one you can use consistently, so there’s no need to make wash day complicated.
Common hair-washing mistakes to avoid
A few simple changes can make your wash routine work harder for you:
● Avoid excessively hot water, which can leave hair feeling dry.
● Don’t overload fine hair with conditioner at the roots.
● Give weekly treatments enough time to work before rinsing.
● More shampoo doesn’t necessarily mean cleaner hair – start with a small amount.
● Rinse shampoo and conditioner thoroughly to minimise residue and buildup.
Hair Washing FAQs
How often should you wash your hair?
It depends on your scalp, texture and lifestyle. Fine or oily hair may need washing every 1–3 days, while thick, curly or coily hair can often go longer.
Is it bad to wash your hair every day?
Not necessarily. If your scalp needs frequent cleansing, choose a gentle shampoo and pay attention to whether your hair becomes dry or uncomfortable.
Should you use conditioner every time you shampoo?
Generally, yes. Conditioner helps replenish moisture, detangle, and smooth hair after cleansing.
Do hair treatments replace conditioner?
They can sometimes be used in place of conditioner, depending on the product directions and your hair’s needs. Treatments generally provide more intensive care.
What is double shampooing?
It simply means shampooing twice during the same wash. It can help remove heavy buildup, excess oil, and styling products.
Which HASK range is best for dry hair?
The HASK Argan Oil Repairing Collection is a great option for dry or damaged hair that needs additional moisture, softness, and shine.
Can oily hair become oilier if you overwash it?
Overwashing can leave some scalps feeling dry or uncomfortable, but oiliness is influenced by several factors. Instead of deliberately avoiding shampoo, focus on finding a cleansing frequency and formula that keeps your scalp feeling balanced.
Find your perfect wash-day routine
There’s no prize for going the longest between washes – and there’s no universal schedule everyone needs to follow.
The best haircare routine is the one that suits your hair type, scalp, lifestyle and goals. By choosing the right shampoo, following with conditioner and adding targeted treatments when your hair needs extra care, you can keep strands looking healthier, softer and more manageable throughout the year.
Explore HASK’s range of shampoos, conditioners and treatments and build a wash-day routine made for your hair.
