For women in perimenopause

Your brush started filling faster.

Hair showing up on the floor, in the drain, on your sweater โ€” more than it used to.

Take the 60-second scalp assessment โ†’
Jessica Pantermuehl, FNTP, CHHC ยท practitioner-formulated ยท no 30-day promises
โ€”Practitioner-formulated
โ€”EU-standard clean
โ€”Clinically-studied actives
โ€”Hormone-conscious
A practitioner's standard

"Women were already doing so much right. Their scalp care deserved the same level of thought."

Jessica Pantermuehl, FNTP, CHHC ยท Founder
Sound familiar?

You're not imagining the change.

It usually starts small the brush, the drain, the ponytail.

  • More strands in the brush than you'd like to admit
  • A ponytail that feels half its old size
  • A part that looks wider than it did a year ago
  • A scalp that's drier and itchier than it used to be
A woman applying The Scalp Serum at her mirror
Practitioner-developed ยท science-backed

Built on the mechanism โ€” not a promise.

Practitioner-Formulated

Developed by a Functional Nutritional Therapy Practitioner, not a marketer.

Two Studied Actives

Densidyl + Baicapil, applied at the scalp โ€” treated like skin.

EU-Standard Clean

Formulated without the 1,300+ ingredients the EU bans and the US allows.

The 90-Night Method

An honest timeline. Real change follows consistency, not hype.

What 90 nights looks like

Honest, week by week.

Weeks 1โ€“4: applying The Scalp Serum at the part
Scalp feels more hydrated and balanced.
Weeks 4โ€“8: less shedding
Less shedding, and hair that feels stronger.
Weeks 8โ€“12+: fuller-looking hair
Visible improvements in fullness and thickness.

In clinical studies on the active Densidyl, participants saw visible improvements as early as 60 days. Everyone's hair is different โ€” consistency is key.

The science behind the serum

What the ingredient studies show.

25.9% more growth-phase hairs
11.43% increase in hair density
26.7% more scalp moisturization

In a 5-month study on the active Densidyl (Algaktiv, n=50). Ingredient-level research โ€” individual results vary.

Reserved: founding-cohort before/after gallery + verified reviews module (populated post-launch โ€” no customer counts shown until substantiated).
Fragrance-free ยท No parabens ยท No sulfates ยท No phthalates ยท Hormone-conscious ยท EU-standard ยท Fragrance-free ยท No parabens ยท No sulfates ยท No phthalates ยท Hormone-conscious ยท EU-standard ยท Fragrance-free ยท No parabens ยท No sulfates ยท No phthalates ยท Hormone-conscious ยท EU-standard ยท Fragrance-free ยท No parabens ยท No sulfates ยท No phthalates ยท Hormone-conscious ยท EU-standard ยท
Our roots
"My clients were doing everything right โ€” then going home to a bathroom shelf that hadn't caught up yet."

Jessica spent over a decade helping women understand their hormones and health. Byrch is the clean, effective answer she couldn't find โ€” built for the hair changes perimenopause brings.

โ€” Jessica Pantermuehl, FNTP, CHHC
Jessica Pantermuehl, FNTP, CHHC โ€” founder of Byrch
60 seconds ยท built by a practitioner

Find out what's behind your thinning.

Answer a few questions and get your personalized Scalp Snapshot โ€” what your pattern means, and the best way to support it.

Take the scalp assessment โ†’
No spamยท One bottle, $48 ยท 90-night money-back guarantee