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5 key rules for how to grow your hair long

Growing your hair seems simple: just don’t get it cut so often. But having longer hair that looks thick, healthy and glossy is not so easy. Here’s everything you need to know to grow long, lustrous and healthy hair. By GEORGIA DAY

Beauty

Understanding long hair

On average, hair grows about half an inch per month, but the exact amount varies and is affected by everything from genetics and ethnicity to stress levels, medication and general health. There are three phases of growth and shedding: anagen, catagen and telogen. The anagen phase is the most active of the three and is when new cells are formed in the root of the hair. To optimize growth in this key stage it’s important to keep it healthy, because breakages may be one of the reasons your hair isn’t growing as long as you would like. “Healthy hair will not break as easily as dry, brittle hair, and therefore will reach its natural maximum length,” says trichologist Candy Lewis Williams, ND. So, how can you tell if your hair is in shape? “Healthy hair will have its own natural shine, without styling products. It shines because the outer layer of the hair, the cuticle, is lying flat and reflecting light,” says Williams.

Get to know your hair

For most of us, while the hair closest to our roots might feel full and healthy, our mid lengths and ends tell a different story. “The degree of thinning and breakage shows how unhealthy that once-fresh root hair has become, once exposed to things like chemical treatments and heat styling. Healthy hair grows longer quicker because it’s not thinning, breaking and shrinking at the ends,” says hair stylist and founder of the 3 More Inches range, Michael Van Clarke.

As well as fostering a good internal environment to grow longer hair – a good diet, sensible lifestyle and adequate sleep all help – how we wash and style our hair is just as key. “Well cared-for hair can retain 90 percent of its thickness and shine at 18 inches long,” says Van Clarke. “But poorly cared-for hair can easily lose 98 percent of its mass at the same length, through thinning, breakage and split ends.” If you have Afro or textured hair, your main concern should be keeping dryness at bay, which can restrict growth. Look to keep your hair well moisturized with deep conditioners and oils such as jojoba and argan oil, which help promote growth.

Healthy scalp = healthy hair

The scalp is often overlooked when it comes to haircare, but it is an extension of your skin, so you should be diligent with thorough cleansing, regular exfoliation and proper nourishment. If neglected, poor scalp-health will not only slow hair growth, but can actually lead to hair loss from bacterial and fungal infections. To keep both your hair and your scalp healthy, aim to shampoo every other day, unless you’re working out a lot or your hair is subjected to heavy pollutants or dust, in which case, do it more frequently. Failure to remove a build-up of dirt and grime can mean an itchy, irritated scalp, which will have a knock-on effect to the health of your hair and, ultimately, impact how long you can grow it.

Know the rules

Protein-rich products help to keep your hair in shape. Look for those containing keratin or amino acids as they help nourish, repair and replace any protein that’s been lost through damage. To protect your strands, avoid silicones and heavy oils, says Van Clarke: “Despite making the hair look lovely today, they dehydrate the hair and ruin it for tomorrow.” And try to steer clear of sodium laurel sulphates (SLS) and DEA, says Williams, which act like detergents but can irritate your hair follicles. As for heat, avoid regular heat styling, but if you must iron or blow out your hair, set your tool to a lower temperature and always apply a heat-protection spray first to minimize the damage. Never, ever, iron wet, damp or even dirty hair, because adding intense heat to hair with a build-up of dirt and product will compact the damage and lead to breakage. Getting regular trims may seem counterintuitive if you’re trying to grow your length, but banishing split ends is a must if you want long-term health, says Williams. “I recommend a trim every eight weeks; a split end can catch in your comb or brush and it doesn’t always break on the ends but can break off three or four inches up the hair shaft.”

Look at your diet

Hair growth is considered non-essential compared with other bodily functions, so it’s low down on the priority list when it comes to getting nutrients. If you’re restrictive in your eating, hair growth can be halted altogether, and you may even experience shedding. Make sure you eat a rounded diet that features plenty of complex carbohydrates and protein to boost energy to the follicles and encourage growth. “Hair is 3 percent water and 97 percent protein, so a diet without enough protein will impact hair quickly,” says Van Clarke. Aim to eat at least 50g a day of protein, such as chicken, fish or eggs. Certain vitamins, minerals and fatty acids are also essential; while broccoli, oranges and kiwis contain high levels of vitamin C, leafy greens are rich in vitamin D and almonds and avocado are high in vitamin E. You’ll also need plenty of iron, omegas-3 and -6 and biotin to promote healthy follicle function, while zinc and vitamin B12 are key because they help produce new hair cells.