When you receive a cancer diagnosis, the conversation moves fast. Treatment plans, schedules, appointments — and somewhere in the middle of it all, someone may mention the words cold cap or scalp cooling. You might have questions you weren't ready to ask yet. You might not have known this was even an option.
This post is for you — the person who is newly entering treatment and trying to understand what's possible on your hair journey before chemotherapy begins. We're going to walk through exactly what cold cap therapy is, how it works, what you can realistically expect, and the questions worth bringing to your oncology team.
What Is Cold Cap Therapy (Scalp Cooling)?
Cold cap therapy — also called scalp cooling or scalp hypothermia — is a treatment designed to reduce hair loss during chemotherapy. It involves wearing a specially fitted, very cold cap on your head before, during, and after each chemotherapy infusion.
The medical term is chemotherapy-induced alopecia (CIA), and it affects roughly 65% of chemotherapy patients. For many people navigating cancer treatment, hair loss is one of the most emotionally distressing side effects — not because hair is the most important thing, but because it's visible and so personal. It changes how you see yourself in the mirror every day, and it tells the world something about what you're going through before you're ready to share it.
Cold cap therapy exists to give patients a choice in that experience.
How Does Scalp Cooling Work?
Here's the science behind it, in plain language.
Chemotherapy drugs work by targeting rapidly dividing cells — including cancer cells. But hair follicle cells are also fast-dividing, which is why they're caught in the crossfire and why hair loss occurs.
When you wear a cold cap, it lowers the temperature of your scalp to between approximately 64–72°F (18–22°C). This does two important things:
- Reduces blood flow to the scalp. Less blood flow means less chemotherapy drug reaches the hair follicles.
- Slows cellular activity in the follicles. The cold slows down cell division in the scalp, making follicle cells less vulnerable to the chemo drug's effects.
The result: for many patients, the hair follicles are protected enough to survive treatment.
The Two Types of Cold Caps: What's the Difference?
There are two main types of scalp cooling systems, and understanding the difference matters before you decide.
Automated Scalp Cooling Systems (FDA-Cleared) These are machine-based systems — brands like DigniCap and Paxman — where a fitted cap connects to a device that continuously circulates cooled liquid at a precisely controlled temperature. The FDA cleared the first automated scalp cooling system in 2015. These systems are available at many cancer treatment centers and require no manual cap changes during your infusion.
Manual Cold Caps Manual cold caps (like Penguin Cold Caps) are gel-filled, helmet-style caps stored in dry ice. Because they begin warming as soon as you put them on, they need to be swapped out every 20–30 minutes throughout your infusion. This means you'll want a caregiver or support person present to manage the cap changes. Manual caps are not FDA-regulated but have been used for decades in Europe and by thousands of patients in the U.S.
What to know: The type available to you will depend on your treatment center. Ask your infusion team which systems they have access to or support before your first treatment.
Does Cold Capping Actually Work? Setting Honest Expectations
This is the most important section to read carefully, because cold capping has real promise — and real limitations.
The evidence is encouraging. According to data from the Dutch Scalp Cooling Registry — one of the largest studies of its kind — 56% of patients who used scalp cooling did not require a head covering by their final chemotherapy treatment. For patients on taxane-based chemotherapy regimens, that success rate climbed to 78%.
But results are not guaranteed. Scalp cooling may reduce the amount of hair lost by approximately 50%, but it does not prevent hair loss for everyone. Many patients who cold cap still experience significant thinning, partial loss, or shedding — particularly at the temples, crown, or hairline. Some patients complete their treatment with most of their hair intact. Others keep enough to avoid noticeable loss from the outside. And some patients, despite consistent use, still experience significant hair loss.
What influences whether it works for you:
- The type and dose of chemotherapy you're receiving (taxane regimens tend to respond best; anthracyclines are harder to protect against)
- How frequently your infusions are scheduled
- Your hair density and scalp coverage going into treatment
- How consistently and correctly you use the cap from session one onward
The takeaway: cold capping is a meaningful option worth exploring — but approach it with open eyes. It is a tool to reduce hair loss, not a guarantee of keeping your hair. Starting with this mindset will help you feel empowered no matter the outcome.
Who Is — and Isn't — a Good Candidate?
Scalp cooling is not right for every patient. Here's a general overview of candidacy, though your oncologist has the final word.
You may be a good candidate if you:
- Have a solid tumor cancer (breast, ovarian, colorectal, bladder, lung, prostate, and others)
- Are receiving intravenous chemotherapy
- Are being treated at a center with scalp cooling access
Cold capping is generally NOT recommended if you:
- Have a blood (hematological) cancer such as leukemia, lymphoma, or multiple myeloma
- Are taking oral chemotherapy
- Have cold sensitivity conditions such as cold agglutinin disease or cryoglobulinemia
- Are receiving certain types of targeted therapy or immunotherapy (discuss specifics with your oncologist)
- Have scalp metastases or a high risk of scalp involvement
This list is not exhaustive. Always discuss your specific diagnosis and treatment plan with your care team.
What Does the Experience Actually Feel Like?
Let's be honest: wearing a cold cap is not comfortable. Most patients describe the first 10–15 minutes as intensely cold, tight, and sometimes painful — like a brain freeze that doesn't go away. The sensation typically becomes more manageable as your scalp adjusts.
Common side effects of scalp cooling include:
- Headache or head pressure
- Chills and feeling cold throughout your body
- Discomfort or tightness from the cap
- Occasional skin irritation at the cap edges
What it adds to your day: Because you wear the cap 30–45 minutes before your infusion and for 1–4 hours after, depending on the system and regimen, expect your infusion appointment to be significantly longer. Plan your day accordingly, bring warm layers, and consider having someone with you for support — especially if you're using manual caps that require regular changes.
Many patients who complete cold capping say the discomfort was worth it. Some find it too difficult to continue. Both responses are valid. There is no right answer.
The Cost Reality: What to Know About Pricing and Insurance
Cold capping has a real financial cost that can feel like one more unfair thing about an already hard situation. Here's what to know.
Manual cold caps (like Penguin): approximately $380–$450 per month, plus shipping and dry ice costs (roughly $100 per infusion session).
Automated scalp cooling systems: typically $2,000–$2,200 for a full course of treatment, or a per-session facility fee if your infusion center has the system.
Insurance coverage: Coverage is not standard in the United States, though it is improving. Some insurers cover part or all of the cost; many do not. Some states, including New York, have passed legislation requiring insurance coverage for scalp cooling. Always call your insurance provider before your first treatment to ask directly about coverage.
Financial assistance exists. Organizations including the Rapunzel Project and HairToStay offer financial assistance programs for patients who cannot afford scalp cooling. Your oncology social worker or nurse navigator can also help you identify hospital-based subsidies.
Questions to Ask Your Oncology Team Before You Decide
Bring this list to your next appointment. You deserve clear answers before you make this decision.
- Am I a candidate for scalp cooling based on my cancer type and chemotherapy regimen?
- Does our infusion center have scalp cooling systems available — and which type?
- Based on my specific chemotherapy protocol, what success rate would you reasonably expect?
- How much time will scalp cooling add to each of my infusion appointments?
- Should I start cold capping at my very first infusion, or is there flexibility?
- Are there any risks I should know about given my specific diagnosis and stage?
- Do you have a nurse or team member who has experience helping patients with cold capping?
- Can you help me explore financial assistance or connect me with a social worker about cost?
- If I decide to stop cold capping mid-treatment, will that affect anything medically?
- What should I do now to prepare my hair and scalp before treatment begins?
If You Decide Not to Cold Cap — That's Okay Too
Cold capping is one choice on your hair journey. It is not the only choice, and it is not the right choice for everyone. For some patients, the cost is prohibitive. For others, the added time or discomfort doesn't feel sustainable during an already demanding treatment schedule. And for some, the idea of releasing control of their hair — and leaning into headwear as a form of self-expression — feels more freeing than fighting for each strand.
There is no wrong answer here. What matters is that you make a decision that aligns with your values, your body, your life, and what will help you feel most like yourself throughout this journey.
If you do lose your hair — whether you try cold capping or not — know that this community is here. Beautiful, confidence-building headwear designed for every stage of your hair journey is not a consolation prize. For many survivors, including our founder Sonya, it became a source of unexpected power.
Preparing Your Hair and Scalp Now (Before Chemo Starts)
Whether you plan to cold cap or not, there are things you can do before treatment begins to support your scalp:
- Wash your hair gently with sulfate-free, gentle shampoos
- Avoid heat styling, bleach, or chemical treatments in the weeks before chemo
- Moisturize your scalp with lightweight, nourishing oils
- Consider a shorter cut — many patients find this eases the emotional transition of hair loss, and shorter hair is also easier to manage under a cold cap
- Switch to a silk or satin pillowcase to reduce friction on fragile hair
[READ MORE: Survivor Stories - Cutting Your Hair Before Chemo]
You Are Not Alone in This
Hearing about hair loss for the first time — or learning that there might be a way to prevent it — can bring up a complicated mix of hope, anxiety, and grief. All of that is normal. Your hair journey is yours. Whatever path you choose, you deserve to feel informed, supported, and beautiful every step of the way.
We're here for all of it.
Explore headwear designed for every stage of your hair journey at StyleEsteem — from your first infusion to your first haircut and beyond.
This post is for informational purposes only and is not a substitute for medical advice. Always consult with your oncologist and care team about treatment decisions specific to your diagnosis.