Why Won't My Hair Grow?

Why Won't My Hair Grow?

Science-backed solutions for slow-growing strands.

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Hair health? It’s complicated.

The secret to thick, healthy hair is more than avoiding heat styling. It’s a complex balance of health factors inside and out. 

The good news: we have solutions.

So if you’re the person whose hair never seems to grow past a certain length (no matter how many TikTok hacks you try), scroll to discover the surprising reasons that answer “why won’t my hair grow?”. 

1. You’re feeling stressed

Excess cortisol (the stress hormone) pumping around the body can push the hair cycle into the exogen (shedding) phase, leading to hair loss. Telogen effluvium is another more severe type of hair loss triggered by stress, shock, or a dramatic change in the body like menopause or childbirth, leading to significant shedding. If you’re struggling with stress, GROWTH PHASE is formulated with calming reishi mushroom and eleuthero root extracts to improve the body’s stress response and reduce anxiety.

GROWTH PHASE single The Nue Co.


For thicker, fuller hair, clinically proven to reduce breakage and support hair growth. Endrocine safe.


2. You need more B vitamins

Riboflavin, biotin, folate and vitamin B12 are all essential B vitamins needed for healthy hair growth. If our bodies don’t have sufficient levels, our hair can become weak, brittle and more prone to breakage and shedding. B vitamins are also responsible for producing red blood cells, which carry oxygen and nutrients to the scalp. This ensures hair follicles are well-fed, and can grow healthy new hair at the root. You’ll find all 8 B vitamins in GROWTH PHASE to cover all bases for strong hair growth.

3. Your scalp microbiome is off 

#scalp has over 800 million views on TikTok, and Google searches around scalp health are up 300% since last year. Why? We’re starting to understand that a healthy scalp = healthy hair. Taking care of scalp health and the scalp microbiome ensures the good bacteria there stays in positive balance. This prevents redness, irritation and dandruff flakes, improving all-round hair health and growth. SUPA_THICK is formulated with lactobacillus ferment, a probiotic that repopulates good bacteria to support scalp health.

SUPA_THICK single The Nue Co.

Supa Thick

​​A nourishing serum that tackles hair loss and breakage at root - the scalp.

4. Your hair follicles are blocked

Dandruff and dead skin cells could be clogging your hair follicles and impacting hair growth. Using SUPA_THICK twice a week will help remove product build-up and any flaky skin irritating the scalp. The lightweight, serum formula targets both the hair follicle stem cells and dermal papilla cells located at the bottom of the follicle to ensure all areas are unblocked, free to get back on track with a healthy hair growth cycle. Plus, we love the clean, tingly feeling we get after using SUPA_THICK, thanks to a refreshing combo of peppermint, rosemary and clary sage.

5. There are silicones in your shampoo

Lots of hair care formulas contain silicones, chemicals known for their smoothing, detangling, shine-boosting properties. They work by coating each strand of hair to make it feel soft and silky. They aren’t toxic, but many silicones build up over time, repelling water and causing hair and the scalp to feel dry and dehydrated. This happens when moisture can't get in through the silicone "coat" on each strand. Try swapping your shampoo and conditioner to silicone-free formulas, or use SUPA_THICK to cut through the product build-up.



A 2-step routine to support a healthy scalp and improve hair growth.


6. Your hormones aren’t in balance

Unbalanced hormones can cause hair follicles to stop regenerating at their optimal rate. Iodine is believed to support the thyroid, an essential part of the endocrine system crucial for healthy hair growth. We added iodine sourced from kelp to GROWTH PHASE to help rebalance hormones and support a regular hair growth cycle.

Longer, stronger strands? We're HAIR for it. Browse our hair products to discover science-backed solutions for thick, shiny hair that *does* grow past a certain length…