How to Care for your Hair During Chemotherapy

Written By Lotte May
Founder of Comfort Crate & Cancer Advocate

One of the most emotionally challenging side effects of cancer treatment is hair loss. While it is a visible reminder of the battle you are fighting, understanding why it happens and how to manage the transition can give you a greater sense of control and confidence.

The Science: Mitosis and Rapidly Dividing Cells

Chemotherapy is designed to seek out and destroy cells that undergo rapid mitosis (cell division). Because cancer cells divide much faster than healthy cells, they are the primary target. However, certain healthy cells in your body also divide rapidly—specifically your hair follicles, which divide every 23 to 72 hours. Sadly, the treatment cannot always distinguish between a bad rapidly dividing cell and a good one. This is why hair follicles are often the first healthy system impacted by cytotoxic drugs.

Chemotherapy vs. Radiotherapy: The Hair Loss Timeline

Everyone’s journey is different, but here is a general guide to what you might expect:

Chemotherapy: Hair loss usually begins 2–3 weeks after your first infusion. It is often systemic, meaning you may lose hair from your scalp, face, and body.
Radiotherapy: Hair loss is localised. You will only lose hair in the specific area being treated (e.g., your scalp if you are receiving radiation to the head). Note that hair may take longer to return or may not return fully in radiated areas; your oncologist can provide specific guidance here.
Targeted & Hormone Therapies: These are more likely to cause significant thinning or changes in texture rather than total alopecia.

5 Essential Tips for Managing Hair Loss and Scalp Sensitivity

1. Explore Scalp Cooling (The Cold Cap)
Ask your medical team about cold-cap therapy. By cooling the scalp, this treatment constricts the blood vessels, reducing the amount of chemotherapy medication that reaches the hair follicles. This can often help patients retain more of their hair during treatment.

2. Transition to Mild Scalp Care
As hair thins, your scalp becomes more exposed and sensitive. Switch to sulphate-free, fragrance-free shampoos. If your scalp feels itchy or tight, apply a small amount of mineral oil or baby oil. When drying, always pat the scalp rather than rubbing to avoid unnecessary tugging.

3. Pause the Chemical Treatments
Avoid perming or colouring your hair during treatment. The harsh chemicals can irritate a sensitive scalp and further damage the hair shaft. If you must colour, opt for organic, peroxide-free temporary tints.

4. Rethink Your Styling Routine
High heat from straighteners and hairdryers can make fragile hair brittle. Use a soft bristle brush or a wide-tooth comb. Pro tip: If your hair is tangling, try finger-combing with wet hands to gently separate strands without pulling at the root.

5. The Silk Pillowcase Secret
Switch to a silk or satin pillowcase. Unlike cotton, these fabrics allow your hair to glide over the surface, significantly reducing the friction that causes tangles and "bed-head" breakage.

Master Your Side Effect Management: Hair loss is more than just a physical change; it's a major life transition. To help you navigate this period with expert resources, The Ultimate Guide to Managing Chemo Side Effects features a comprehensive chapter dedicated to hair and scalp health. Inside, you’ll find survivor-led tips on cold capping, scalp-soothing recipes, and emotional support strategies to help you feel like yourself again.