If Your Shower Drain Is Scaring You

A calm, science-grounded guide to shedding

Let’s start with the most important sentence: losing hair is normal.

Your body sheds between 50 and 100 strands a day as part of a completely natural growth cycle. Every single hair on your head moves through a growth phase, a rest phase, and a shedding phase, and they don’t all do it at the same time. That’s why healthy shedding is usually steady rather than dramatic.

So if you’re noticing more hair in the shower, on your pillow, or in your brush:

Don’t panic, get curious. Because the cause shapes the response. You’re not dramatic, you’re observant, and that’s genuinely helpful, especially for long-game hair.

This is Blog 3 of MSR Hair Month. It’s the calm one. No doom scrolling. No “you’re going bald” energy. Just clean science, a supportive wash day routine, and clear guidance on when it’s worth checking in with a professional.

Shedding vs hair loss: not the same thing

These two terms get used interchangeably, and they should not. The distinction matters practically.

Shedding (temporary) Hair loss (structural)
Hair exits at the root with a white bulb attached Hair thins progressively, often in a pattern
Usually diffuse, all over the scalp Often patchy or concentrated at crown, temples, parting
Common after stress, illness, diet changes, hormonal shifts Linked to genetics, hormones (DHT), autoimmune conditions
Often resolves once the trigger is removed Tends to be progressive without intervention
Often peaks 2-4 months after the triggering event Usually gradual and ongoing

If you’re noticing more hair than usual but it seems even, temporary, and not paired with visible thinning at your hairline or crown, you’re most likely dealing with a shedding episode rather than hair loss. If you’re seeing patches, consistent thinning in specific areas, or scalp discomfort with hair loss, that’s your cue to chat to a GP or dermatologist.

What causes a shedding episode?

The clinical name for increased shedding is telogen effluvium. It happens when a significant proportion of hairs enter the resting (telogen) phase at the same time, then shed together a few months later.

Common triggers include:

·         Physical stress: surgery, illness, significant weight loss, childbirth

·         Emotional stress: prolonged anxiety, grief, burnout

·         Nutritional deficiencies: iron, ferritin, zinc, B12, vitamin D

·         Hormonal shifts: postpartum hormones, thyroid changes, going on or off contraception (yes, the acne surprise is real)

·         Certain medications: check your information leaflets

·         Scalp inflammation: untreated dandruff or seborrheic dermatitis

The tricky part: shedding usually peaks 2–4 months after the trigger, not immediately. So you might be shedding in March from something that happened in November. It’s not always obvious what caused it, and sometimes no exact cause is found.

The reassuring part: for most people, normal cycling resumes 3–6 months after the trigger resolves. Consistent scalp care and good nutrition during that time help support your scalp while it regulates.

What a wash day routine can (and cannot) do

A wash day routine does not stop telogen effluvium mid-course. That resolves with time and (where possible) removing the trigger.

What a good routine can do:

·         Keeps the scalp clean, reducing inflammation that can worsen shedding

·         Delivers supportive ingredients like caffeine, peptides, and zinc pyrithione to the scalp

·         Reduces mechanical shedding from friction, weak strands, and rough handling

·         Supports the health of the hair that is still growing

Think of this as supportive conditions, not a miracle. The foundations matter, even if they’re not glamorous.

The Shedding SOS Wash Day Blueprint

Four steps. Same framework as Blog 1 and Blog 2. Different focus.
(And yes, the goal is to stop feeling like a shedding cat in summer.)

Step 1: Cleanse the scalp, gently and consistently

A clean scalp is the baseline. Product build-up, excess sebum, and inflammation all create an environment that is harder on follicles. The goal here is regular, thorough cleansing without stripping.

Look for shampoos with scalp-supportive ingredients: caffeine (which some research suggests may support the hair growth phase), zinc pyrithione or salicylic acid for sebum and inflammation control, and peptides or proteins for strand integrity.

We suggest:

Step 2: Condition with care

Shedding hair is often weakened at the strand level too. Conditioning helps reduce breakage, which means the hair you have stays attached longer and looks fuller. Apply to lengths and ends only, never the scalp.

Step 3: Targeted scalp treatment

This is where shedding routines differ most from other routines. The treatment focus shifts from the lengths to the scalp.

Scalp serums and ampoules with active ingredients can be applied after washing (to a damp scalp) and left in. They are not rinse-off products.

Step 4: Seal and protect the lengths

Less dramatic than the scalp step, but still worth doing. Weak or dry lengths break more easily, which makes shedding look worse than it is. A light oil or essence on damp ends helps.

Scalp type check: what is yours?

Scalp type Signs Best for you
Oily or flaky Greasy roots fast, dandruff, itchiness NINELESS Root-Biome or ARENCIA Cloud Scrub weekly
Sensitive or reactive Redness, tightness, products sting or irritate Some By Mi Cica or LILYEVE Scalp:Turn
Dry or tight Scalp feels dry, no excess sebum NARD Therapy Shampoo or MOEV Annurcatin
Balanced, just shedding No other scalp symptoms, just more hair falling Caffeine shampoo + LILYEVE Grow:Turn or AROMATICA Tonic

The habits that support scalp health

  • Wash regularly: a clean scalp reduces inflammation. Skipping washes does not protect your follicles.
  • Handle hair gently when wet: wet strands are weaker and snap more easily. Wide-tooth comb or detangling brush, start from ends, no aggressive towel-rubbing.
  • Avoid very tight hairstyles worn consistently: traction on the same points repeatedly can end the growth phase early.
  • Support from the inside: iron, zinc, ferritin, and vitamin D deficiency are all linked to shedding.
  • Reduce heat on already-weakened strands: if your hair is actively shedding, now is not the time for aggressive heat styling.

When to check in with a professional

See a GP or dermatologist if:

  • Shedding has not improved after 4-6 months of consistent care
  • You notice patchy hair loss (not diffuse all over)
  • Your hairline or crown is visibly thinner
  • There is scalp pain, burning, or visible scalp changes
  • Shedding began alongside other symptoms like fatigue, weight changes, or feeling very cold

Also worth reading this month

Blog 1 covers the core wash day framework for shine and frizz control. Blog 2 covers bonding treatments and repair routines for heat or bleach damage. If your hair is both shedding and damaged, start with the scalp routine here, then apply the damage repair steps to the lengths.

The shower drain is not a verdict. It is data. More shedding than usual is often temporary, often explainable, and often manageable with consistency and the right routine. A clean scalp, supportive ingredients, and gentle handling.