The Shift Is Real: What Perimenopause Can Change About Your Hair + Scalp
Your Hair Follicles Respond to Hormones
Hair follicles are hormone-sensitive. During the transition to menopause, estrogen levels fluctuate and eventually decline, while the relative influence of androgens can increase.¹
Research has linked this hormonal shift with changes in:
- hair density
- strand diameter
- hair texture
- the hair growth cycle¹
That can show up as a widening part, a thinner-feeling ponytail, more visible scalp, finer strands or hair that simply feels different than it used to.¹ ³
Importantly, not every change is automatically caused by perimenopause. Female-pattern hair loss often begins in midlife and can look similar, which is why persistent or progressive thinning is worth discussing with a dermatologist.³
It’s Not Just the Hair — Your Scalp Can Shift, Too
The scalp is skin, and menopause-related changes in skin can include increased dryness, reduced ability to hold moisture + greater sensitivity.²
That may help explain why a familiar routine can suddenly feel different.
You may notice:
- more dryness or tightness
- new sensitivity or itching
- more visible flaking
- changes in how your scalp feels day to day
- hair that feels finer, rougher or harder to manage¹ ²
Several things can overlap at once — hormones, age, weather, stress + underlying hair or scalp conditions — so it’s also worth looking at the whole picture rather than assuming every change is hormonal.
— the under luna way —
What Can You Actually Do?
The goal isn’t to “fix” perimenopause with shampoo. Hair care can support the scalp + help protect fragile hair, but it cannot treat an underlying hormonal or medical cause of hair loss.
Start by reassessing what has actually changed.
You may need to rethink:
- how often you wash — if your scalp is becoming oilier, itchy or more buildup-prone, washing a little more will help keep the scalp happy, clean + more comfortable rather than trying to stretch wash days
- does your shampoo still suit your current scalp — the formula that worked for you a year ago may not be the best match now.
- how much moisture your scalp + lengths need — if your scalp feels drier or more depleted, consider adding a weekly scalp treatment, like with any of our conditioners (here's how) or a nourishing scalp serum
- how gently you handle thinning or fragile hair — avoid aggressive brushing, tight styles + unnecessary heat, and focus on keeping the hair conditioned and supported
If shedding or thinning is sudden, significant, patchy or persistent, it’s worth checking in with a dermatologist rather than assuming it’s “just hormones.¹ ³
Your scalp can change. Your routine can too.