Hair Thinning: Signs, Causes, and What Actually Works | Paul Mitchell The Salon

Noticing more hair in the shower drain, a wider parting, or less volume than you used to have? You're not imagining it, and you're also not alone — hair thinning is one of the most common hair concerns people bring up, at almost any age. The good news is that in a lot of cases, there's a clear, identifiable reason behind it, and understanding what's actually going on is the first real step toward doing something about it.

Early Signs Worth Paying Attention To

Hair thinning is usually gradual, which is exactly why it's easy to miss until it's fairly noticeable. Some early signs:

  • Your ponytail feels noticeably thinner than it used to
  • More visible scalp, especially at the part line or crown
  • Increased shedding when washing or brushing (some daily shedding is completely normal — the average person sheds 50–100 hairs a day, so it's the change that matters, not shedding itself)
  • Hair that feels finer or more fragile than before
  • Slower-feeling regrowth after cuts

What Commonly Causes It

There isn't one single cause of hair thinning — several different things can drive it, often at the same time:

Hormonal changes — pregnancy, postpartum, menopause, thyroid issues, and PCOS can all affect hair growth cycles.

Stress — significant physical or emotional stress can push a large number of hair follicles into a resting phase at once, leading to noticeable shedding a few months later (a pattern often called telogen effluvium).

Nutritional factors — low iron, vitamin D, or protein intake can all affect hair growth and strength.

Genetics — pattern thinning (androgenetic alopecia) affects both men and women and tends to run in families.

Scalp health — inflammation, product buildup, or an unbalanced scalp environment can affect how well follicles function over time.

Medication and medical conditions — some medications and underlying health conditions list hair thinning as a side effect or symptom.

Because the causes vary so much, what works for one person's thinning won't necessarily work for someone else's — which is exactly why a proper assessment matters more than jumping straight to a product.

When to See a Doctor First

If your hair thinning is sudden, patchy, accompanied by scalp pain or visible irritation, or comes with other symptoms (fatigue, weight changes, irregular periods), it's worth speaking to a doctor before anything else. Thinning tied to an underlying medical or hormonal cause needs to be addressed at that level — no salon treatment or product can substitute for that.

What a Scalp Assessment Can Tell You

For thinning that isn't linked to an underlying medical condition, a proper in-person scalp analysis is genuinely useful, because it looks at what's actually happening rather than guessing. At our Hair & Scalp Longevity Clinic, that means:

  • A real scalp analysis to look at follicle density, scalp condition, and where thinning is occurring
  • A conversation about your history — stress, diet, hormonal changes, hair care habits, and family history
  • A personalised plan built around what we actually find, which might include specific scalp treatments, changes to your hair care routine, or professional-strength products
  • Progress tracking over time, since hair growth cycles are slow (typically several months) and it's easy to give up on something that's actually working just because change isn't visible in week two

We're upfront that results vary from person to person, and that some causes of thinning are better addressed by a doctor than a salon. What we can offer is an honest look at your scalp and hair, and a realistic plan based on what we actually see — not a one-size-fits-all product pushed at everyone who walks in.

Book a scalp consultation →

Woodlands Boulevard, Garsfontein, Pretoria — walk-ins welcome, or book online, via WhatsApp, or by phone.