How to care for hair and scalp during chemotherapy: a complete guide
Causes, protection tips, scalp cooling, head coverings and regrowth, with support that preserves dignity
Frequently asked questions
Chemotherapy drugs are designed to destroy fast-growing cells, which is exactly how cancer cells behave. Unfortunately, hair follicle cells are also among the fastest-dividing cells in the body, so they get caught in the crossfire. This process is medically known as anagen effluvium, meaning hair is lost while it is still in its active growth phase, rather than resting phase shedding seen in normal hair loss.
At the cellular level, the matrix cells at the base of the follicle can no longer divide properly, which weakens the hair shaft until it breaks or falls out. It's important to understand that this is a side effect of how the drug works biologically, not a sign that the cancer is getting worse or that treatment is failing.
Most people notice hair falling out within 1 to 4 weeks after their first chemotherapy session (some sources note onset as early as 2-3 weeks). Early warning signs often include noticeably more hair on the pillow, in the shower drain, or on a hairbrush.
Three main factors influence how much hair is lost: the type of drug, the dose, and how frequently treatment is given. Hair loss isn't limited to the scalp — eyebrows, eyelashes, arms, legs, and pubic hair can also be affected. Patterns vary widely: some people experience patchy thinning, while others lose all body hair.
Since timing and severity are unpredictable and vary from person to person, it's best to ask your care team what to expect with your specific treatment plan.
Chemotherapy-induced hair loss can be approached in several complementary ways. There isn't a single 'best' solution — the right choice depends on the type of chemo, your cancer type, budget, and personal comfort with how you look during treatment.
- Scalp cooling: This is a prevention method, using either frozen caps or machine-cooled systems (like the Paxman device). It works through vasoconstriction, which reduces blood flow and follicle metabolism, limiting the amount of chemo drug reaching hair roots. Effectiveness varies widely, from about 10% to 100% hair retention, depending on the drug regimen and individual response. It requires time commitment (cooling before, during, and after each infusion), can cause cold-related discomfort or headaches, isn't guaranteed to work, and is generally not recommended for blood cancers such as leukemia or lymphoma due to theoretical safety concerns. It's also not available at every hospital.
- Wigs/hairpieces: A cosmetic replacement option. Ideally obtained before hair loss begins so the color and style can be matched to your natural hair. Cost varies, but insurance sometimes covers wigs when tied to documented medical hair loss.
- Head coverings: Scarves, turbans, and hats offer a simpler, lower-cost, and more comfortable alternative. Cotton-blend scarves tend to stay in place better than silk.
- No covering at all: Simply accepting hair loss without wearing anything is a valid, zero-cost personal choice.
These options aren't mutually exclusive — many people combine scalp cooling with a head covering as backup, or alternate between wigs and scarves. Discuss your priorities and medical eligibility with your oncology team before deciding.
Deciding whether scalp cooling is a good fit for you involves looking at several medical, practical, and financial factors. Here's a checklist to guide that decision, ideally in conversation with your oncology team:
- Cancer type and treatment regimen: Scalp cooling is FDA-cleared for solid tumors treated with taxane or anthracycline-based chemotherapy, where it tends to work best. It is generally not recommended for leukemia or lymphoma, due to a theoretical (though very small) concern about protecting circulating cancer cells in the bloodstream.
- Expected effectiveness: Results vary widely, from about 10% to 100% hair retention, depending on drug type, dose, and individual factors. It does not guarantee you'll keep all your hair, and some shedding is normal even with cooling.
- Starting hair and scalp condition: Healthy, undamaged hair and scalp tend to respond better to cooling.
- Tolerance for cold-related side effects: About 30-50% of users report headaches, nausea, scalp discomfort, or feeling chilly during sessions. Consider whether you can tolerate hours of cold exposure per treatment.
- Contraindications: Conditions like cold agglutinin disease, cryoglobulinemia, or significant cold sensitivity may rule out scalp cooling for safety reasons.
- Logistics: Frozen cap systems (e.g., Penguin, Chemo Cold Cap) require a helper to swap caps during treatment and add significant time to each session, while machine-cooled systems (e.g., Paxman) are more automated but may not be available everywhere.
- Cost and insurance: Coverage varies; check with your insurer and ask about prior authorization requirements.
Not all cancer centers offer scalp cooling, so confirm availability early. Ultimately, discuss your specific chemotherapy plan, medical history, and priorities with your oncology team—they can help you weigh effectiveness, risks, and logistics to decide if scalp cooling makes sense for you.
Scalp cooling works by causing vasoconstriction in the scalp's blood vessels and slowing cellular metabolism in hair follicles, which limits the amount of chemotherapy drug that reaches and damages the follicle. This mechanism explains why effectiveness varies so widely.
Effectiveness: Success rates range broadly from about 10% to 100% depending on the chemotherapy drug, dosage, and cooling protocol used. In clinical trials such as the SCALP trial and the HOPE study, the strongest results were seen with anthracycline/taxane regimens combined with 90+ minutes of post-infusion cooling, reaching success rates around 76%. Studies consistently show that people using scalp cooling need wigs or head coverings far less often than those who don't use it. Machine-based systems tend to maintain a more consistent cold temperature than frozen caps, which can affect outcomes.
Side effects: Roughly 30-50% of users report side effects, most commonly headaches, nausea, scalp pain, and feeling cold or chilly. Rarely, scalp or forehead irritation can occur. These discomforts cause some patients to discontinue treatment early.
Safety concern: A common fear is that cooling could increase the risk of cancer spreading to the scalp. Current evidence does not support this — the risk remains very small regardless of whether cooling is used.
Bottom line: Results vary widely by individual and drug type, so outcomes are never guaranteed.
Scalp cooling costs vary depending on the system you choose, but here is a general breakdown based on typical pricing structures:
- Machine-based systems (e.g., Paxman): These usually involve an enrollment or fitting fee of around $3,785, which covers equipment setup and training. On top of that, most centers charge a per-session pre-cooling fee of about $194, plus a post-cooling fee ranging from roughly $68.60 to $203.93, depending on how long post-infusion cooling is required.
- Frozen cap rental systems: These often have lower upfront equipment costs, but you'll need to rent multiple caps (since they must be swapped out as they warm up), purchase dry ice to keep them frozen, and arrange a trained helper or "capper" to change the caps during treatment. This can offset some of the savings compared to machine-based systems.
Regarding insurance coverage, it varies significantly by provider and plan—some insurers cover scalp cooling partially or fully, while others require prior authorization or don't cover it at all. If cost is a concern, look into financial assistance programs like Hair to Stay or the Paxman Patient Assistance Program, which can significantly reduce out-of-pocket expenses.
As for time commitment, expect to add 20 to 90 extra minutes to each chemotherapy session—this includes time for pre-cooling before infusion starts and post-cooling after it ends.
Because pricing, coverage, and availability differ by location and treatment center, it's best to confirm exact costs and session timing directly with your care team and the billing department before starting treatment.
Caring for hair and scalp during chemotherapy requires a gentle, consistent routine to minimize irritation and damage, since skin and hair follicles often become more sensitive during treatment.
Washing and Drying
- Wash hair every 2 to 4 days using a mild, fragrance-free shampoo.
- Use lukewarm water rather than hot water, which can further irritate the scalp.
- After washing, pat the hair and scalp dry gently with a soft towel instead of rubbing, which can cause unnecessary friction and breakage.
Brushing and Combing
- Use a soft-bristle brush or a wide-toothed comb.
- Start detangling from the ends of the hair and work upward to reduce pulling on fragile strands.
- Brush gently and infrequently to limit stress on the scalp.
What to Avoid
- Heat styling tools such as hair dryers, curling irons, and straighteners.
- Chemical treatments including hair dye, bleach, perms, and relaxers.
- Tight hairstyles like braids, ponytails, or buns, as well as harsh accessories such as tight clips, scrunchies, or rubber swim caps.
Scalp Protection
- Continue gentle daily cleansing of the scalp, even if hair has fallen out.
- Apply a fragrance-free moisturizer to keep the scalp skin hydrated and reduce irritation.
- Use SPF 30 or higher sunscreen on the scalp daily, since bald or thinning scalp skin is especially vulnerable to sun damage.
- Wear protective head coverings, such as soft hats or scarves, in cold or sunny conditions.
Sleep and Friction Reduction
- Sleep on silk, satin, or smooth cotton pillowcases to reduce friction on hair and scalp during the night.
Important Notes
Washing hair does not cause or speed up hair loss—this is a common myth. However, scalp skin can become more sensitive during chemotherapy, so gentler products and techniques are essential. Some people choose to cut their hair short before it starts falling out to make the process easier to manage. Always consult your care team before introducing new products or treatments to ensure they are safe during therapy.