Can birth control cause hair loss? A London trichologist explains
Not all pills are equal for your hair. Some help female-pattern loss, some accelerate it — and the difference sits in the progestin.
Dr. Amara Okafor
Consultant Trichologist · Harley Street
In short
- Androgenic progestins (levonorgestrel) can worsen thinning.
- Anti-androgenic progestins (drospirenone) can help.
- IUDs (Mirena) can trigger diffuse shedding in some women.
- Never stop hormonal contraception for hair reasons without a plan.
Contraceptive hormones interact with hair follicles via the androgen pathway. That interaction can be positive, neutral or negative — depending on the specific hormone and your individual sensitivity.
Progestins ranked by hair impact
- Anti-androgenic (best for hair): drospirenone (Yasmin), cyproterone (Dianette)
- Neutral: desogestrel, gestodene
- Androgenic (worst for hair): levonorgestrel, norethisterone, norgestrel
IUDs and hair
The Mirena and Kyleena release levonorgestrel — a mildly androgenic progestin. Most women have no hair effect; a small subset develops diffuse shedding 3–6 months after fitting. Copper IUDs are hormone-free and hair-neutral.
Switching pills — the London protocol
Never stop mid-cycle. Discuss with GP: switch to an anti-androgenic pill for 6 months, retest thyroid and ferritin, then reassess. Hair changes take 3–6 months to reflect any switch.
Frequently asked
Common questions
Will stopping the pill cause shedding?+
Yes — post-pill shedding is common at 3 months, mimics postpartum TE, resolves in 6–12 months.
Is coming off contraception better for hair long-term?+
Depends. For women with PCOS features, anti-androgenic pills often help hair more than being off contraception.
Does the injection cause hair loss?+
Depo-Provera can, in about 5% of women — usually reverses on discontinuation.
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