how to fix stunted hair growth
By Tamim Hamid Last Updated on 03/14/2025

How to Fix Stunted Hair Growth? 5 Easy Tips

Hair growth can sometimes just stall, leaving you frustrated and looking for answers. Stunted hair growth isn’t just about patience running thin; it’s often a sign that something deeper is at play. Whether it’s stress, nutritional gaps, or your favorite heat styling tools quietly sabotaging your strands, there’s no shortage of culprits when growth slows down.

If you’ve been Googling how to fix stunted hair growth, you’re not alone. The good news is, fixing it isn’t rocket science. By making a few changes to your routine and addressing the root causes, you can nudge those follicles back into action.

In this blog, we’ll break down what causes hair to hit pause and give you five science-backed tips to fix the problem.

What Causes Stunted Hair Growth?

Hair growth doesn’t just hit the brakes without a reason. Stunted hair growth causes are often a mix of factors that disrupt the natural hair cycle, preventing strands from growing as they should. Unlike normal shedding or a short-term slow-down, stunted growth means your hair follicles are no longer keeping up with the job they were designed to do. If you’re seeing less progress than a cactus in a drought, it’s time to dig into what’s holding your hair back.

1. Nutritional Deficiencies

Your hair is as needy as a toddler—it demands the right nutrients to grow, and it’s not shy about throwing a tantrum when those nutrients are missing. Iron, zinc, biotin, and protein top the list of essentials for healthy follicle function. Without enough protein, for example, your body may prioritize vital organs over your scalp. The result? Hair that looks like it’s been stuck in a bad mood for weeks.

Science backs this up: Iron deficiency, for instance, is a common cause of stunted hair growth, especially among women. A lack of biotin or zinc can lead to brittle hair that breaks before it grows to its full potential. Addressing these gaps isn’t just good for your hair; it’s a win for your overall health too.

2. Hormonal Imbalances

Hormonal imbalances can be sneaky saboteurs of hair growth, and these culprits aren’t picky—they affect both men and women, just in varying degrees. Hormones like dihydrotestosterone (DHT), cortisol, and thyroid hormones can interfere with hair follicle function.

DHT, a byproduct of testosterone, is notorious for shrinking hair follicles in individuals predisposed to hair loss. This process isn’t exclusive to men—women produce testosterone too, albeit in smaller amounts, making them susceptible as well. Meanwhile, thyroid imbalances can disrupt the anagen (growth) phase of the hair cycle, slowing overall hair production.

And let’s not forget cortisol, the stress hormone. Chronic stress often sends cortisol levels soaring, reducing blood flow to the scalp and prematurely pushing hair into the telogen (resting) phase. No matter your gender, these hormonal shifts can sideline your growth potential.

3. Stress Factors

Chronic stress isn’t just a mental health buzzkill; it can also be a major reason behind stunted hair growth causes. Stress-induced hair loss, often referred to as telogen effluvium, is when hair follicles decide to take a break en masse. In layman’s terms: a stressful event, illness, or prolonged anxiety can trigger your hair to stop growing and start shedding.

Stress also triggers cortisol production, which indirectly affects hair growth by reducing blood flow and nutrient delivery to the scalp. The good news is, techniques like meditation and scalp massage for hair growth have been shown to counteract stress’s effects and bring your follicles back to life.

4. Environmental Damage

Your hair has a sworn enemy, and it’s the environment. Pollution, UV exposure, and even the weather can sap moisture and weaken your hair shafts. Think of pollutants as microscopic hitchhikers that cling to your hair, blocking follicles and slowing growth. UV rays, on the other hand, can degrade hair proteins, leaving strands brittle and prone to breakage.

Harsh weather conditions like wind or extreme dryness? They’re no picnic either. They rob your hair of moisture, making it difficult for new growth to thrive. Investing in protective measures, like wearing hats or using leave-in conditioners with UV blockers, can go a long way in defending your hair against environmental sabotage.

5. Medical Conditions

Sometimes, it’s not your habits or environment—it’s your health. Conditions like alopecia areata, polycystic ovary syndrome (PCOS), and thyroid disorders often come with the side effect of slowed or halted hair growth. Alopecia areata, for example, is an autoimmune disorder where the body mistakenly attacks its own hair follicles. PCOS throws hormones out of balance, leading to an overproduction of DHT, while hypothyroidism slows down all growth processes, including your hair.

If you suspect a medical condition is contributing to your hair woes, consulting a healthcare provider is non-negotiable. Treatments for these conditions often go hand in hand with improved hair health, so don’t hesitate to address the underlying issue.

Signs of Stunted Hair Growth

If your locks are misbehaving more than usual, it might be time to consider whether you’re dealing with stunted hair growth. This is your body’s way of signaling that something is off. Here’s how to know if your hair growth cycle needs a little intervention—and maybe some targeted hair growth treatments or a smarter diet for hair growth.

Slow Hair Growth

If you’re convinced your hairbrush hasn’t seen a new strand in weeks, you’re not imagining things. Slow hair growth is often the first sign of stalled follicles. New hair takes longer to sprout, and the existing growth seems frozen in time. Nutritional deficiencies, particularly in protein and biotin, are common culprits, which is why dialing in a diet for hair growth is key to getting things moving again.

Hair Thinning

Noticeably thinner strands or less overall volume could mean your follicles are struggling to stay in the growth phase. This is more than just genetics—factors like stress, hormone imbalances, or even product buildup can throttle your hair’s ability to thicken and flourish. Addressing thinning with nourishing hair growth treatments and proper scalp care can make all the difference.

Increased Hair Shedding

When your shower drain starts resembling a bird’s nest, excessive shedding might be at play. Hair shedding is natural, but when regrowth fails to keep up, your hair density takes a hit. This often points to telogen effluvium, a condition triggered by stress, illness, or nutrient gaps. Tackling the root cause, whether through stress management or upping your intake of iron and zinc, is crucial for regaining balance.

5 Easy Tips to Fix Stunted Hair Growth

1: Maintain a Healthy Diet

Your hair might be growing on your head, but its health starts on your plate. Nutritional deficiencies are one of the sneakiest culprits behind stunted growth, and addressing them requires a well-rounded approach. Key nutrients like iron, omega-3 fatty acids, and lean proteins are essential for keeping your follicles fueled and thriving.

And while biotin often gets the spotlight in hair care supplements, don’t fall for the hype around mega doses. Biotin is more of a supporting character—it plays a role in overall hair health as part of a balanced diet, but clinical evidence doesn’t support its ability to grow more hair on its own. Think of biotin as part of the team, not the star player, when it comes to nutrition’s role in hair growth.

2: Stay Hydrated

If your hair could talk, it’d probably say, “I’m parched.” Dehydration not only affects your skin and energy levels but also your hair’s growth rate. When your scalp is dehydrated, hair follicles struggle to function, leading to slower growth. Keep those roots happy and healthy by drinking enough water daily—it’s one of the simplest fixes that delivers results. After all, hydrated follicles are productive follicles.

3: Use the Right Hair Products

Your shampoo isn’t just there to make your hair smell good. Using the wrong products—or ones packed with harsh sulfates and alcohols—can wreak havoc on your scalp and strands. Opt for products tailored to your hair type and look for strengthening ingredients like keratin and peptides. Incorporating hair growth oils like argan or rosemary oil can also provide added nourishment and improve follicular health. Clean, well-nourished hair is more likely to grow, so don’t skimp on the good stuff.

4: Regular Scalp Care

Healthy hair starts from the top—literally. Regular scalp care, including cleansing, exfoliation, and moisturization, ensures that your follicles aren’t clogged with excess oil, dirt, or product buildup. It also boosts blood flow to the scalp, delivering nutrients to where they’re needed most. Ingredients like tea tree oil or gentle scalp scrubs can help you maintain a clean, balanced foundation for growth. Neglecting your scalp is like planting a garden and forgetting to water it—don’t be that gardener.

5: Avoid Excessive Heat and Chemical Treatments

Your flat iron and bleach sessions might be doing more harm than good. Overexposure to heat tools and harsh chemicals weakens the hair shaft, leading to breakage and stunted growth. Minimize the use of these treatments, and always use heat protectants when styling. Limiting these stressors helps your strands stay strong and grow uninterrupted. Protecting your hair isn’t just a good habit—it’s essential for sustained growth.

Conclusion

Stunted hair growth doesn’t have to be a permanent problem. From cleaning up your diet to rethinking your hair care routine, these easy fixes can revive sluggish strands and get them growing again. Focus on what your hair needs, stay consistent, and remember—healthy habits lead to healthy hair.

Tamim Hamid

Tamim Hamid

Inventor and CEO of Theradome

Sayyid Tamim Hamid, Ph.D, is the inventor of the world’s first FDA-cleared, wearable phototherapy device to prevent hair loss and thicken and regrow hair. Tamim, a former biomedical engineer at NASA and the inventor of Theradome, brings with him more than 38 years of expertise in product development, laser technology, and biomedical science. Tamim used his laser knowledge, fine-tuned at NASA, and combined it with his driving passion for helping others pursue a lifelong mission in hair loss and restoration. He is now one of the world’s leading experts.