How Many Centimetres Does Hair Grow Per Month?

Hair growth is based on the hair cycle, which consists of three phases: anagen (growth), catagen (transition), and telogen (rest). This cycle is influenced by hormonal, genetic, and environmental factors. During the anagen phase, the hair follicle is active and the hair grows—it is this duration (between 2 and 6 years) that determines the potential length of your hair.

Good to Know

Hair does not all grow at the same rate, nor does it grow continuously at a steady pace. This is why some people notice rapid growth, while others may feel their hair growth has stalled for months.

Oxidative Stress

External aggressors such as pollution, UV rays, tobacco, or an unhealthy lifestyle lead to a phenomenon known as oxidative stress. This weakens the hair shaft and harms the health of the scalp. When hair follicle cells are stressed, growth slows down or temporarily stops. It is therefore essential to protect your hair from external aggressors and to consume antioxidants through your diet to stimulate hair growth.

Hormonal Imbalance

Hormones play a key role in the hair growth cycle. During pregnancy, menopause, or in cases of thyroid disorders, hormone production is disrupted. This can result in significant hair loss or slowed hair growth. You can detect a potential endocrine disorder through a blood test prescribed by your doctor.

Nutritional Deficiencies

Hair growth depends on the synthesis of keratin, a protein that requires iron, zinc, B vitamins, and amino acids. If your diet is unbalanced or you follow a restrictive eating plan, your body may not have enough nutrients to support optimal hair growth.

An Unsuitable Hair Care Routine

Frequent shampooing, the use of heat styling tools (hair dryers, straighteners), tight hairstyles or an improperly cared-for scalp can hinder hair growth. These habits can stress the hair follicle, weaken the hair fibre and lead to breakage. Adopting a gentle, natural hair care routine is essential if you want to stop wondering, “How many centimetres does hair grow per month?”

Genetic Predispositions

Each individual has a genetically determined hair growth cycle. Some people have a shorter anagen phase (the active growth phase) or naturally lower hair density. If your hair grows slowly despite a healthy lifestyle and good hair care habits, genetics may be the reason.

How Many Centimetres Does Straight Hair Grow in a Month?

Straight hair has the advantage of making any increase in length immediately visible. On average, it grows 1 to 1.5 cm per month, but with a suitable hair care routine and a balanced diet, some people may achieve growth of up to 2 cm per month. Straight hair is also easier to style, which can help reduce breakage and preserve the length gained.

How Many Centimetres Do Curly Hair Grow Per Month?

Curly hair grows just as fast as straight hair, or about 1 to 1.5 cm per month. However, the spiral shape of the curl makes the growth less visible. Additionally, this hair tends to be drier and more brittle, which can limit the appearance of length. Regular natural moisturising treatments and gentle handling are essential for increasing the length of your hair.

How Many Centimetres Does Afro-Textured Hair Grow Per Month?

Coily hair grows at an average rate of around 1 cm per month, but shrinkage (the way the hair curls up on itself) can make this growth less visible. In addition to its naturally coiled growth pattern, this hair type is particularly prone to breakage. It requires ultra-nourishing and protective care (oil treatments, protective hairstyles and daily hydration) to help retain the length gained.

How Many Centimetres Does Men's Hair Grow Per Month?

In both men and women, hair grows at an average rate of around 1.5 cm per month. However, men are more prone to hair loss due to increased sensitivity to DHT (dihydrotestosterone), a hormone involved in androgenetic alopecia.

Is It Possible to Grow 2 Centimetres of Hair Per Month?

It is theoretically possible to grow up to 2 cm of hair per month, but this remains exceptional. The average growth rate is around 1 to 1.5 cm per month, depending on each individual’s genetics, health and lifestyle.

Hair Growth Trio: Strengthen and thicken your hair with this revitalising routine. This duo enhances your hair: it’s fortified, growth is stimulated, and hair loss is slowed, resulting in thicker, shinier, stronger, and more resilient hair. This routine is suitable for all hair types and is ideal for dull, tired, and brittle hair.

Discover the Hair Growth Trio

Organic Castor Oil: Known for stimulating microcirculation and strengthening and thickening hair, Castor Oil is perfect for repairing and nourishing dry, brittle, or frizzy hair. Renowned for promoting hair growth, it is ideal for use as an oil treatment on the scalp. Apply 1 to 2 times a week as a warm oil treatment (heat in a double boiler) to the scalp for 1 hour before rinsing. 

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Hair Growth Active: Extracted from an active microalgae rich in phytosterols, this oily hair care active ingredient effectively stimulates hair growth by boosting the proliferation of fibroblasts in hair follicles. 100% natural, this proven-effective hair growth active is based on a sustainably grown sapote vegetable oil carrier, traditionally used to strengthen and beautify hair. Oil-soluble, this active blends very easily into your hair oil preparations, oil treatments, and oil-based serums. Dosage: 0.5 to 5% of the total weight of the formulation.

Discover the Hair Growth active ingredient

Maca Vital: a powerful hair growth stimulant, it also improves the hair follicles’ resistance to stress and boosts microcirculation. Dosage: 2–5% in your homemade hair care products. 

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Saint Thomas Bay Hydrosol: Saint Thomas Bay Hydrosol cleanses and stimulates the scalp, promotes hair growth, and fights dandruff. It can be used as a spray or lotion, or incorporated into the aqueous phase of your homemade cosmetics. Remember to store it in the refrigerator between uses.

Discover Saint Thomas Bay Hydrosol

1. Limit sources of stress: Chronic stress disrupts the hair growth cycle. You can practice relaxation techniques or yoga to maintain healthy growth.

2. Get enough sleep: Getting restful sleep is also essential for increasing how many centimeters your hair grows per month.

3. Follow a targeted diet: Incorporating foods rich in iron, zinc, biotin, protein, and omega-3s promotes optimal hair growth.

4. Take care of your scalp: Regularly massage your scalp, perform a scalp scrub once a month, and avoid occlusive products to stimulate blood circulation and promote hair growth.

Before applying any new hair or scalp care product, perform a patch test in the crook of your elbow. Always follow the recommended quantities and usage instructions.

Simply wondering how many centimeters your hair grows per month and stimulating growth isn’t enough. You also need to minimise breakage to maintain the length you’ve gained. To do this, you’ll need to protect your hair and repair split ends, use gentle styling methods, and maintain a regular hair care routine.

Formerly a manager at an organic shop, Alice spent several years helping her customers choose healthy products that respect both their health and the natural world. Having suffered from endometriosis since her teenage years, she chose to prioritise natural solutions to ease her symptoms and improve her day-to-day wellbeing. Drawing on her knowledge of naturopathy, she has always explored the benefits of plants and nutrition. Passionate about ecology and deeply connected to nature, Alice makes her own cosmetics and household products to reduce her impact on the planet and all its inhabitants.