A good hair care routine is mostly about what you stop doing. Rubbing shampoo through the lengths, towel scrubbing, high heat and tight styles cause more damage than any product can repair. This guide turns dermatologist advice into a simple week you can repeat, then adjusts it for straight, wavy, curly and coily hair.
Quick Answer
A dermatologist-backed hair care routine has five parts. Wash based on how oily your scalp gets, from daily for straight hair with an oily scalp to every 2 to 3 weeks for thick, curly or coily hair. Put shampoo on the scalp, not the lengths. Condition after every wash. Detangle gently with a wide-tooth comb. Keep heat low, brief and occasional, and avoid styles that pull. Sudden shedding, bald patches or a burning scalp need a doctor, not a new product.
Hair Care Routine at a Glance
The table below collects the core steps from the American Academy of Dermatology (AAD). Each one is low cost and works for every hair type. However, frequency changes with texture, so the hair type table further down fine-tunes it.
| Step | How often | What dermatologists advise |
|---|---|---|
| Shampoo | Daily (oily scalp, straight hair) to every 2 to 3 weeks (dry, thick, curly or coily hair) | Massage shampoo into the scalp. Let the rinse run through the lengths without rubbing. |
| Conditioner | After every shampoo | Ends only for fine or straight hair. Full length for dry or curly hair. |
| Drying | Every wash | Wrap hair in a towel or T-shirt to absorb water. Do not rub. |
| Detangling | Only when styling | Wide-tooth comb. Straight hair: let it dry partway first. Curly or coily hair: comb while damp, ideally with conditioner in. |
| Heat styling | About once a week or less | Lowest setting that works, short contact time, heat protectant first. |
| Hairstyles | Daily | Loose styles. Covered elastics. Loosen braids at the hairline. |
| Chemical services | Every 8 to 10 weeks or longer | One service at a time. Relax or perm at least 2 weeks before colouring. |
A 7-Day Hair Care Routine You Can Keep
This week is a template, not a prescription. If your hair is very oily, you may wash more often. If it is thick and curly, you may wash once in the week. The point is to spread effort out, so no single day involves heat, chemicals and rough handling together.
Monday: Wash Day
Start the week clean. Massage shampoo into the scalp with your fingertips, then rinse. Next, apply conditioner where your hair type needs it. Afterwards, wrap your hair in a towel and let it air dry where possible. If you have dandruff, this is the day for a medicated shampoo on the scalp only. Our guide to dry scalp and dandruff: causes, differences and treatment explains which ingredients to look for.
Tuesday: Hands Off
Choose a loose style that needs no heat. A low, soft bun or a loose braid works well. Avoid tight ponytails, because repeated pulling at the hairline can cause traction alopecia. If your roots feel oily, dry shampoo can absorb some oil between washes. Still, it does not clean the scalp, so it is a bridge, not a replacement.
Wednesday: Ends Check
Look at your ends in good light. Split ends cannot be glued back together by any serum. Instead, trimming is the only real fix. A small trim every few months keeps splits from travelling further up the strand. Meanwhile, a little conditioner or oil on the ends can make them look smoother and reduce snagging.
Thursday: Second Wash If Needed
Straight hair with an oily scalp may need a second wash by now. Thick, curly and coily hair usually does not. Either way, focus on the scalp. If you use a scalp scrub, keep it gentle and occasional. For guidance on acids and frequency, see our article on exfoliation tips: how often, which acid, and what to avoid, since the same caution applies to the scalp.
Friday: Heat Day
If you want to blow dry, straighten or curl, do it once and do it well. First, apply a heat protectant to dry or nearly dry hair. Then use the lowest heat setting that styles your hair. Keep the tool moving and limit contact time. The AAD suggests using heat tools about once a week or less.
Saturday: Rest Day
Let your style last. Skip heat, skip washing if you can, and keep handling to a minimum. Hair never needs 100 brush strokes a day. In fact, the AAD calls that a myth. Brush or comb only to style, and work tangles out from the ends upward.
Sunday: Conditioning Treatment
Use a deep conditioner or hair mask on the lengths before or after washing. Very dry or easily tangled hair can be conditioned before shampooing, as well as after. For curly or coily hair, follow with a leave-in conditioner or a light oil on the lengths. Then, at night, a loose braid or a satin or silk bonnet reduces friction while you sleep.
Hair Care Routine by Hair Type
Hair type changes three things: how often you wash, where conditioner goes, and when you detangle. Everything else in the routine stays the same.
| Hair type | Washing | Conditioner | Detangling |
|---|---|---|---|
| Straight or fine, oily scalp | May need daily | Ends only, light formula | Let hair dry partway, then wide-tooth comb from the ends |
| Wavy | Every few days, as needed | Mid-lengths and ends | Damp, with a wide-tooth comb or fingers |
| Curly | As needed, at least every 2 to 3 weeks | Whole length, thick conditioner, then leave-in or oil | In the shower with conditioner in, in sections |
| Coily or tightly textured | As needed, at least every 2 to 3 weeks, in sections | Whole length; can condition before and after shampoo | Wet, with leave-in conditioner, fingers or a wide-tooth comb. Avoid brushing dry |
If you use gels, creams or pomades, a clarifying shampoo before your usual shampoo removes build-up. Similarly, if you use an anti-dandruff shampoo, apply it to the scalp only and leave it on for the time on the label. These shampoos can dry the lengths, so follow with a moisturising shampoo or conditioner on the rest of the hair.
Why Hair Advice Online Contradicts Itself
Readers often find one site saying wash daily and another saying wash rarely. Both can be right. The AAD advice itself spans daily washing for straight hair with an oily scalp to every 2 to 3 weeks for thick, curly or coily hair. Sebum travels down a straight strand quickly, so roots look greasy fast. By contrast, it struggles to coat a tight curl, so the lengths stay dry. One rule for everyone will always be wrong for someone.
Oil advice splits the same way. On the hair shaft, oil can help. A laboratory study found coconut oil reduced protein loss from both damaged and undamaged hair, whether used before or after washing. Sunflower and mineral oil did not. On the scalp, though, the picture changes. Dermatologists have raised concern that heavy scalp oils may feed Malassezia, the yeast linked to dandruff and seborrheic dermatitis. That is a hypothesis, not a trial result, but it explains why many dermatologists say oil the ends, not the scalp, if you have flakes.
Finally, much advice comes from product marketing, not research. Claims that a serum restores damaged hair, or that organic products are safer, are rarely tested. Damaged cuticle does not heal like skin. Conditioners and serums coat the strand so it looks and behaves better, which is useful, but it is not repair.
Scalp Oiling, Massage and Dandruff
Scalp massage feels good and is low risk. The evidence for growth is thin, however. The study most often quoted followed nine healthy men who used a massage device for 4 minutes a day for 24 weeks. Average hair thickness rose slightly, but there was no control group. So massage is fine as a habit, yet it should not replace a medical assessment for hair loss.
If you have flakes or an itchy scalp, do not try to oil them away. Dandruff and seborrheic dermatitis usually respond to medicated shampoos. A dry scalp needs a different approach again. Our guide to dry scalp and dandruff: causes, differences and treatment explains how to tell them apart. People curious about kitchen remedies can read cumin for skin and hair: benefits, myths and side effects for an evidence check on one popular option.
What the Evidence Says About Common Hair Tips
| Claim | Where it stands |
|---|---|
| Shampoo the scalp, condition the lengths | Supported. Core AAD advice for all hair types. |
| Everyone should wash daily, or everyone should wash rarely | Not supported. Frequency depends on scalp oiliness and texture. |
| Oiling the scalp cures dandruff and prevents scalp infections | Not supported. Oil may worsen dandruff in some people. Medicated shampoo is the usual first step. |
| Coconut oil protects hair | Supported in the lab for reducing protein loss from the strand. Not evidence for growth. |
| Scalp massage boosts hair growth | Overstated. One small, uncontrolled study showed a slight thickness change. |
| Sleeping with wet hair causes hair loss | Not supported. Wet hair is easier to stretch and break, so handle it gently. |
| Brush 100 strokes a day | Not supported. The AAD calls this a myth. |
| Tight styles can cause permanent hair loss | Supported. Traction alopecia can become permanent if ignored. |
| Silk pillowcases prevent hair damage | Overstated. Dermatologists say satin or silk may reduce friction. Trials are lacking. |
| Serums and masks repair damaged hair | Overstated. They smooth and protect the strand. Split ends need trimming. |
Safety: When a Hair Care Routine Is Not Enough
Losing around 50 to 100 hairs a day is normal, according to NHS guidance. See a GP or dermatologist if you notice any of the following:
- Sudden hair loss, hair coming out in clumps, or new bald patches
- An itchy, burning, stinging or crusted scalp
- Broken hairs or a receding line at the forehead or temples where hair is pulled back. Change the style straight away if braids or extensions cause pain or tenting of the scalp.
- Hair loss after illness, stress, weight loss or a new medicine, which is often temporary but worth checking, including for iron deficiency
A changing hairline can also be normal genetics. Our article on the widow’s peak hairline explains how to tell a natural shape from recession.
Product safety matters too. Essential oils are a recognised cause of allergic contact dermatitis, so never apply them neat to the scalp. Dilute them and patch test first. In 2022, Unilever recalled some aerosol dry shampoos in the US over possible benzene from the propellant. If you use aerosol dry shampoo, check current recall notices for your country. Hair dye can also stain or irritate skin; see how to remove black hair dye from skin for safe removal. During pregnancy, ask your midwife or doctor before starting chemical treatments or new medicated scalp products.
Frequently Asked Questions
Shampoo your scalp as often as it gets oily, condition after every wash, wrap hair in a towel instead of rubbing, detangle gently with a wide-tooth comb, and keep heat styling low and occasional. Choose loose styles that do not pull.
It depends on your scalp and texture. Straight hair with an oily scalp may need daily washing. Dry, thick, curly or coily hair often needs washing only as needed, at least every 2 to 3 weeks, according to the American Academy of Dermatology.
Usually not for fine or straight hair, which only needs conditioner on the ends. Dry or curly hair benefits from conditioner along the whole length. Shampoo is the product that belongs on the scalp.
There is no good evidence that it causes hair loss. Wet hair stretches and breaks more easily, so avoid rough handling, tight styles and tugging while it is wet. A loose braid can reduce tangling overnight.
There is no reliable evidence that oiling makes hair grow faster. Coconut oil reduced protein loss from hair in a laboratory study, which may help strands resist damage. If you have dandruff, keep oil on the lengths rather than the scalp.
The evidence is weak. One small study of nine men without a control group found a slight increase in hair thickness after 24 weeks of daily massage. Massage is low risk, but it does not replace seeing a doctor about hair loss.
The American Academy of Dermatology suggests about once a week or less. Use a heat protectant, the lowest setting that works and short contact time, and air dry when you can.
Yes. Tight ponytails, buns, braids and extensions can cause traction alopecia. Early signs include broken hairs and a receding hairline. Caught early it can improve, but it can become permanent if the pulling continues.
NHS guidance says losing around 50 to 100 hairs a day is normal. See a doctor for sudden loss, clumps, bald patches, or an itchy or burning scalp.
Related Reading
- Dry Scalp and Dandruff: Causes, Differences and Treatment
- Widow’s Peak Hairline: Genetics, Causes and Styling
- How to Remove Black Hair Dye From Skin (and When It Isn’t a Stain)
- Cumin for Skin and Hair: Benefits, Myths and Side Effects
Sources
- American Academy of Dermatology. Tips for healthy hair. aad.org
- American Academy of Dermatology. 10 hair care habits that can damage your hair. aad.org
- American Academy of Dermatology. Hairstyles that pull can cause hair loss. aad.org
- American Academy of Dermatology. 6 curly hair tips from dermatologists. aad.org
- NHS-sourced guidance. Hair loss. nidirect. nidirect.gov.uk
- Rele AS, Mohile RB. Effect of mineral oil, sunflower oil, and coconut oil on prevention of hair damage. J Cosmet Sci. 2003. PubMed
- Koyama T, et al. Standardized scalp massage results in increased hair thickness. Eplasty. 2016. PubMed
- Mayo T, Dinkins J, Elewski B. Hair oils may worsen seborrheic dermatitis in Black patients. Skin Appendage Disorders. 2023. Karger
- Patch testing and contact allergy to oxidized lavender oil. Acta Dermato-Venereologica. medicaljournals.se
- US FDA. Unilever issues voluntary US recall of select dry shampoos due to potential presence of benzene. 2022. fda.gov
Disclaimer: This article is for general information and does not replace advice from a doctor, dermatologist or pharmacist. If you have hair loss, scalp pain or a skin reaction, seek professional advice.
Last reviewed and rewritten November 2026.
