What is the link between a copper intrauterine device (IUDs) and acne?

Also known as an "intrauterine device" or "IUD," the copper IUD is a hormone-free method of contraception. It is a small T-shaped device measuring approximately 3.5 cm in height, inserted into the uterus by a gynecologist or midwife. The device consists of a plastic structure covered with one or more copper wires, and ends with a small nylon thread that makes it easier to remove.

Through the copper itself! The copper in the IUD causes an inflammatory reaction in the uterus, which alters the uterine lining (or "endometrium") and prevents the fertilized egg from implanting. It also reduces the amount of cervical mucus and has spermicidal properties. In other words, it reduces the quality and motility of sperm, thereby altering their interaction with the egg.

The copper intrauterine device can be a good option for women seeking a hormone free method of contraception that is more effective than natural observation methods. The list of advantages of this contraceptive method is extensive. However, it is not without its drawbacks and contraindications.

In any case, choosing a method of contraception is a deeply personal and intimate decision. We recommend seeking advice from a healthcare professional who understands your individual needs and preferences.

The copper IUD is not a hormonal contraceptive. It is therefore not responsible for hormonal imbalances that cause acne breakouts, unlike hormonal IUDs or implants. But this also means that hormones are not chemically regulated and that a previous imbalance could resurface. It is not uncommon for women to complain of acne breakouts after having a copper IUD fitted. Why is this?

It may be a post-pill reaction

If you switch directly from birth control pills to a copper IUD, your acne flare-up may be related to stopping the pill: your hormonal system is learning to regulate itself again.

It may be an inflammatory reaction

The copper IUD causes continuous inflammation of the uterus. In some people, the increase in the body's inflammation level can result in the appearance of large, sometimes very painful inflammatory pimples.

It could be copper overload

Copper is a metal that is already present in our bodies and plays an essential role in the formation of connective tissue, the maintenance of our immune system, and the functioning of our nervous system. Copper is mainly obtained from our diet, with nuts, legumes, whole grains, and green leafy vegetables being particularly rich in it. However, as with many nutrients, both a deficiency and an excess can be bad for our health. Copper IUDs can increase the level of copper circulating in our bodies. Among the hypotheses put forward, those concerning the effect of copper on zinc absorption and on the thyroid seem to be the most relevant. However, they need to be confirmed by robust studies. 

It may be a zinc deficiency

Excess copper can cause zinc deficiency. However, zinc plays a key role in immune response, fertility, and skin protection. Zinc deficiency can have many consequences, such as immune weakness, anxiety, depression, hair loss, and acne. Many foods are rich in zinc, such as meat, seafood, pumpkin seeds, legumes, nuts, etc. If you suspect you may have a zinc deficiency, talk to your doctor, who may recommend a blood test.

To care for your skin daily with simple, targeted steps, feel free to try our natural, comprehensive routine—easy to adopt and tailored to the needs of skin prone to imbalances:

To learn more, discover our anti-blemish routine.

Be sure to read the indications and contraindications for each product carefully. If, despite your natural treatments, the acne persists or worsens, we recommend that you talk to a doctor or naturopath.