Cold caps reduce blood flow to the hair follicles during chemotherapy treatment. This minimizes the amount of chemotherapy that reaches the hair follicles, thereby reducing the risk of hair loss.

According to studies at the National Library of Medicine, controlled and randomized studies show that the use of a cold caps significantly reduces the risk of hair loss during chemotherapy. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5410200/. At least 8 out of 10 people retain their hair satisfactorily. The result depends on the type of chemotherapy, the combination of chemotherapy and other individual factors. For those who retain their hair, almost everyone will experience a varying degree of shedding. The most common is to shed 10-50% of the hair, but evenly distributed, in a successful course. Although 50% sounds like a lot, those around them will usually not notice any change in appearance and the individual will not need a wig or other headwear.

Within 4-6 weeks you will know if the cold caps are having the desired effect on your hair.

The cold cap technology has been known since 1970 and is approved by health authorities worldwide, and in 2015 the method received the prestigious A++ FDA approval in the USA, which is an international testament to the quality and safety of the method. Rapunzel's cold caps are CE marked and Rapunzel is registered with the Danish Medicines Agency.

No! It is an old myth that cold caps cause brain metastases. International, controlled and randomized studies have rejected this hypothesis. The caps only cool the very outer layers of the hair-bearing part of the scalp. The brain is not frozen - that is simply not possible. Cold caps work in exactly the same way as cold gloves and cold socks, which many people are offered in hospitals to protect their hands and feet during certain chemotherapy treatments. If you encounter healthcare professionals who are not up to date on this knowledge, we recommend that you seek insight yourself. Check out the latest studies at the National Library of Medicine https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5410200/, which the Danish National Board of Health has also reviewed.

Cold caps cannot be used for all types of cancer. As a rule, it must be a solid tumor. Examples of this are typically breast cancer, ovarian cancer, liver, lung and gastrointestinal cancer where treated with chemotherapy that causes hair loss. If you are in doubt whether you can use cold caps, you are welcome to contact us for individual clarification.

Cold caps work regardless of hair type. If you have Asian hair, Afro hair or strong red hair, the pre-treatment is slightly different, but you will be informed about this at the rental.

Yes, you have the right to bring any assistive device, including cold caps, to the hospital as long as you are self-reliant. We always advise that you inform the staff that you will be using cold caps well in advance.

If you don't have a relative who can help you, please contact us at Rapunzel. We have some volunteer helpers attached, call us - and we'll see if we have a volunteer helper in your area.

From January 2026, Danish breast cancer patients will be offered mobile cold caps in connection with chemotherapy. The scheme is a pilot project in Cancer Package V, which aims to assess how the offer can be handled in practice, before possibly spreading to other cancer areas.

If you have a chronic condition and have a long-term need for the use of cooling caps, you pay the normal subscription price for the first 3 months. After that, there is a 20% discount for up to 9 months, and after one year the price is reduced by 60% with continued use.

Yes! We also have users who do not live in Denmark. Call or write to us well in advance if you wish to use cooling hoods outside Denmark's borders, and we will help you.

• Some people experience a slight headache or become drowsy during use. Others experience brainfreeze, similar to eating ice cream too quickly on a hot summer day. Brainfreeze goes away after a few minutes and can be prevented by taking over-the-counter painkillers - consult your treatment team.
• We recommend that you wear a Seaband bracelet or chew gum. If necessary, talk to the department to see if they have anti-nausea medications you can use.

The cold caps are used approximately 30-45 minutes before, during and up to 120 minutes after the chemotherapy treatment has ended. This means that you should expect to wear the cold caps for approximately 4-5 hours on the days you have chemotherapy.

You can prepare in the waiting room or other suitable places in the hospital. You can either continue the post-cooling in the waiting room, in the Cancer Counseling Center or drive home with the cap on, with any planned changes along the way. The cold caps are mobile, so you are also mobile and therefore do not take up time from other patients in the outpatient department.

We recommend that you always take a cold shower at the hospital, among other things to ensure that you know if treatment is delayed, or something else.

The caps cool the forehead and ears, even if there is no hair to be preserved here. You can use cotton pads, panty liners, crocheted/knitted pads on the forehead/ears. However, it is very important that what you use is not too thick, so that the caps are not lifted unnecessarily.

It is not uncommon for your scalp to feel dry and itchy. Don't scratch! Some people use antihistamines to relieve the itching, ALWAYS check with the ward staff before taking any over-the-counter medication to make sure it is okay to take during your chemo course.

We do not recommend hair serums used on the scalp, so as not to unnecessarily stress the scalp further.

Yes, you can use leave-in products during the process, but only on your lengths. It is important that you saturate your hair with moisture.

Unfortunately not. It is hard and tiring on the hair when you use styling methods like these - you will easily end up pulling your hair unnecessarily. We recommend that you only use the above once you have stopped shedding after completing your chemo course.

We recommend that you do not dye your hair again until 6 months after completing your chemotherapy course.

You can go to the hairdresser - but go to a hairdresser you know and trust. Wash your hair at home, and ask the hairdresser to ONLY cut the ends. No hair washing, no hair brushing, heat treatment, products or combing in the hair.

During the cooling cap procedure, most people will experience significantly more hair loss than normal. The amount of hair loss will depend on the type of chemo and the order of the treatments. If the cooling caps work for you, you will experience a steady loss, which you will be able to assess after about 6 weeks.

• It is completely normal to shed more hair during chemotherapy, even if you use cooling caps. We already lose 100-200 hairs a day - few people think about this.
• The international success rate for cooling caps is that it works for 8 out of 10, with hair loss between 0-50%. Among those users who experience over 50% hair loss, many are happy that they have used the method, as they have not experienced total hair loss.

It varies greatly. Some people already experience that shedding stagnates while they are still receiving chemotherapy, at the end of the course. For others it is only in the weeks after. About 1.5 months after finishing chemotherapy, you have stopped shedding more than you would normally.

• If the caps have become visibly dirty, you can wipe them with a wrung-out cloth - it is important that the caps are not put in water, they cannot tolerate that. If the caps are not visibly dirty, simply freeze them again.
• The caps are cleaned by Rapunzel between each new user.

• If you have received a return label when the caps were delivered, follow the instructions:
• Go to: https://returns.postnord.com
• Enter the Shipment ID (found on the return label that was in your package).
• Enter your name, phone number and email.
• Enter the address from which the suitcase should be picked up.
• If you have not received a return label or would you like to deliver in person to our warehouse in Brøndby:

Contact Rapunzel by phone or email, we will then arrange it with you.