Three to six months after giving birth, many women notice clumps of hair coming out in the shower, on the pillow, in the brush. It's normal, it's universal, and it usually resolves — but it's also genuinely distressing. Here's what's actually happening biologically and what helps the regrowth phase.
What's happening biologically
During pregnancy, elevated oestrogen prolongs the growth phase of every hair follicle. Almost no hair sheds for 9 months. Postpartum, oestrogen drops sharply — and all those follicles that should have shed during pregnancy do so within a 3-6 month window.
This is called postpartum telogen effluvium. It's a synchronous shedding event, not actual hair loss. New hair is growing underneath; you just see the synchronised loss of what was meant to shed earlier.
The realistic timeline
- Months 1-3: Hair feels normal, no shed
- Months 3-6: Peak shedding period — most distressing
- Months 6-9: Shedding tapers; new growth becomes visible (often as "baby hairs" along the hairline)
- Months 9-12: Growth continues; hair density usually returns to baseline
Some women find their hair returns slightly different — wavier, finer, or with some greys. Those changes are typically permanent.
What the research suggests actually helps
Nutritional support
- Iron — postpartum iron levels are often depleted. Get tested. Low ferritin slows hair regrowth.
- Vitamin D — same. Deficient women shed longer.
- Biotin — controversial. Most evidence-based reviews suggest it's only useful in confirmed biotin deficiency. Not harmful, often unnecessary.
- Zinc — supports hair follicle activity
- Methylated B-complex — particularly methyl-folate
Marine collagen
The Type I collagen building blocks support the new hair shaft formation. Marine collagen specifically (over bovine) has been shown in studies to improve hair density when taken daily for 3-6 months. Vida Glow Hairology is specifically formulated for this — combines marine collagen with biotin, zinc, and B-complex.
Targeted topicals
- Rosemary oil — 2015 study compared favourably to minoxidil for androgenic loss; less specific data for postpartum but anecdotally helpful
- Caffeine shampoos — modest evidence
- Scalp massage — improves microcirculation; several minutes daily can help
Sleep + stress
Cortisol from chronic sleep deprivation (universal with newborns) accelerates hair shedding and slows regrowth. There's no perfect solution here, but anything you can do to protect sleep helps. Magnesium glycinate at night, even a 90-min nap when possible, makes a difference.
What doesn't work (despite the marketing)
- "Postpartum hair vitamins" with proprietary blends and no transparency on doses — usually expensive multivitamins
- Heat styling protection serums — they protect existing hair but don't grow new hair
- Hormonal "balancers" — your hormones aren't off; this is a normal post-pregnancy adjustment
When to see a doctor
- Hair loss continues past 12 months postpartum
- Patches of complete hair loss (alopecia areata)
- Loss with scalp pain, itching, or scarring
- Fatigue + hair loss together (rule out thyroid, anaemia)
Frequently asked questions
Can I take collagen while breastfeeding? Marine collagen is generally considered safe during breastfeeding. Discuss with your doctor for personalised advice.
How long should I commit to a supplement protocol? Hair grows ~1cm per month. Give any protocol 3-6 months minimum. Take photos at the start so you can track honestly.
Will my hair come back fully? Usually yes — but density may be slightly less than pre-pregnancy. Some women experience permanent changes, particularly after multiple pregnancies.