Hair growth is one of those things most of us don’t think about, until we’re waiting for it. Whether you’re growing out a short cut, recovering from breakage, or simply curious about the science behind those slow-growing strands, understanding how hair grows can help set realistic expectations and guide you toward healthier habits.
So, how fast does hair actually grow? What factors affect its pace, and is there anything you can do to encourage it? In this guide, we’ll break down the growth process, explore what impacts it, and share practical tips (and proven products) to support your hair’s journey from root to tip.
Each strand of hair is far more complex than it looks. Hair begins below the scalp in the follicle, where a root anchored in the bulb receives nutrients from blood vessels via a structure called the papilla. These nutrients help form new cells that harden and are pushed up through the scalp, this is what we see as hair.
The average rate of hair growth is around 1cm per month, or about 6 inches (15cm) per year. But that number varies depending on genetics, hair type, age, and health.
Want to support your hair’s natural growth from within? Viviscal Hair Growth Supplements are formulated with biotin, zinc, iron, and marine protein complex to nourish thinning hair and promote existing growth from the follicle. We’ve seen great results when pairing Viviscal with regular trims and moisture-boosting treatments — it helps support growth from every angle.
Hair growth happens in cycles, made up of four distinct phases:
As we age, the anagen phase shortens, which is why hair often becomes thinner or falls out more easily. A healthy scalp is key to supporting the anagen phase.
Try our scalp treatments and oils designed to boost circulation and keep follicles functioning at their best.
It’s tempting to ask for a one-size-fits-all answer, but the reality is that hair growth depends on many variables. The number can vary significantly depending on a range of biological, environmental, and lifestyle factors. Here’s a deeper dive into the key elements that can influence how quickly and healthily your hair grows:
Genetics are arguably the most significant determinant of your hair’s growth potential. Your DNA dictates everything from the length of your hair’s growth cycle to its thickness, density, and growth rate. Ethnicity also plays a crucial role. Understanding your genetic predisposition can help you tailor a hair care routine that supports your natural growth pattern, rather than working against it.
While both men and women grow hair at similar baseline speeds, some studies suggest that women may experience slightly faster growth rates, especially those with thicker strands. Thicker hair strands tend to grow more rapidly than finer ones, likely because they experience less breakage and can retain length more effectively. To reduce breakage in your hair, try hair thickening shampoos and conditioners. If you’re unsure which one’s right for your hair type, speak to our stylists — we’ll help you choose a routine that works for you and your lifestyle.
Hormones are deeply intertwined with the hair growth cycle. Fluctuations in estrogen, progesterone, and androgens can either promote or inhibit growth. For example:
Hair is a non-essential tissue, meaning your body prioritises vital organs over it. As a result, even minor nutritional deficiencies can impact growth. Essential nutrients for optimal hair health include:
Even with a healthy diet, some people benefit from targeted supplementation, such as hair growth vitamins, to support their hair from within.
Surprisingly, the seasons can also influence your hair. Several studies suggest that hair grows slightly faster in the summer, possibly due to:
However, these benefits can be counteracted by UV damage, chlorine exposure, and dehydration, so protect your strands with hats, hydrating conditioners, and hair treatments enriched with oils like coconut, argan, or jojoba. One of our favourites is the Davines OI Conditioner — it’s ultra-hydrating, lightweight, and makes detangling a breeze after a long day in the sun.
Achieving longer, stronger hair involves more than just waiting for it to grow, it requires nurturing both your scalp and strands with targeted care, smart habits, and nutritional support. Here’s how to optimise your hair growth journey from every angle.
The scalp is where hair growth begins, so maintaining its health is crucial. A clean, nourished, and stimulated scalp creates the ideal environment for strong hair to grow. Regular scalp massages help increase blood circulation, which brings more nutrients and oxygen to the hair follicles. Using scalp treatments or oils can also support hydration and prevent dryness or irritation that might hinder growth. Exfoliating occasionally with a gentle scalp scrub removes buildup and allows follicles to function more effectively.
Hair is made up of keratin, a protein that depends on a steady supply of nutrients to grow. A balanced diet rich in iron, zinc, biotin, and vitamins like B12 and C supports the anagen phase of the hair growth cycle. While a nutrient-dense diet is essential, supplements like the Viviscal hair growth vitamins can help fill in the nutritional gaps, especially if you’re dealing with thinning hair or slow growth. These supplements are clinically proven to nourish hair follicles from within, helping to prolong the growth phase and support stronger, healthier strands over time.
Topical products play a big role in maintaining length and strength. Look for conditioners and treatments that are formulated to repair and reinforce the hair shaft. Ingredients like hydrolysed keratin, peptides, and botanical oils strengthen the cuticle and help seal in moisture, reducing breakage and split ends. Weekly deep conditioning masks
and overnight oil treatments can offer an intensive boost to dry or damaged hair. For daily care, consider lightweight leave-in products and nutrient-rich oils to keep strands nourished and protected.
Daily haircare habits can either support or sabotage your hair growth goals. Wet hair is especially fragile, so be sure to detangle it gently using a wide-tooth comb, starting at the ends and working up. Pat your hair dry with a microfiber towel or a soft T-shirt instead of rubbing it harshly. Avoid tight hairstyles that put strain on your scalp and hairline, and try switching up your hairstyle regularly to prevent tension in the same areas. When heat styling, always use a heat protectant spray to minimise thermal damage.
While it might seem counterproductive when trying to grow longer hair, regular trims are essential. Split ends can travel up the hair shaft, causing more damage and breakage, ultimately leading to length loss. Getting your hair trimmed every 8–12 weeks keeps the ends healthy and prevents fraying. A light “dusting” can remove damage without sacrificing overall length.
Book an appointment with Stonehills today to keep on top of your hair. We’ll assess your ends, recommend the right treatments, and make sure your hair stays in peak condition as it grows.
Frequent washing can strip the scalp and hair of natural oils, leading to dryness and fragility. Aim to wash your hair two to three times a week, adjusting based on your hair type and lifestyle. Use dry shampoo or a lightweight hydrating mist on days between washes to refresh your roots. Choose gentle, sulphate-free shampoos that cleanse without irritating the scalp, and always follow up with a nourishing conditioner to replenish moisture.
Hair won’t grow longer overnight, but by nourishing your body, caring for your scalp, and using targeted products, you can create the optimal conditions for growth.
Whether you’re just starting your hair journey or trying to overcome breakage, remember: consistency is key.
Support your hair from the inside out with Viviscal hair growth products and explore our curated range of hair oils, conditioners, and growth treatments designed to help you reach your healthiest, longest hair yet.
Get in touch with our expert team in Welwyn Garden City for luxury, in-salon hair services.
