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Thinning hair in women

Have you noticed thinning hair? Women, like men, can suffer from hair loss and thinning for different reasons, and it’s not always age-related. We take a look at what causes thinning hair in women, as well as ways to improve its thickness and natural-looking volume, as recommended by experts. 


There are different reasons why your hair might appear thinner. Knowing what kind of thinning hair you have is the first step to identifying the cause, and then finding a solution to the problem.

Hair production slows
Over time, our hair follicles can stop producing new hair, which leaves the scalp increasingly visible. The still-active follicles might produce healthy fibres, but if a significant number slow or even stop entirely, hair will appear visibly more sparse.

Thinner hair production
The stage before hair follicles stop producing hair is usually precluded by the production of thin, straggly new hairs. Compare new hair growth with longer, older strands and compare their texture to see if this could be the cause for your thinning hair.

Naturally thin hair
Eye colour, height, body shape and hair type are all related to our genetics, like our hair type, with some people being born with naturally thin or fine hair, and others a full head of thick, voluminous locks. Compare your hair with that of your family to see if thin hair is a family trait.

Hair falls out
The hair may still be in production, but certain causes can result in it dropping out in places, or when it reaches a certain length. This can be noticed by increased hair shedding overnight and in the shower. Read on for what causes hair loss in women...


Stress and thinning hair 
Thinning hair in women can cause emotional stress  and, vice versa, stress can cause hair to thin and even fall out. It’s a cycle that’s difficult to break out of, but it starts with a) reducing the stress trigger and, if that trigger is thinning hair, b) taking steps to improve hair quality.

Pulling and over-styling 
Not only do compulsions such as trichotillomania (obsessive hair pulling) cause hair loss, but the way you style your hair is also a potential cause of thinning hair. Tight braids, weaves and even pulled-back buns/ponytails can result in the gradual weakening of hair.

Medication that causes hair loss 
Chemotherapy is well-known for its side effects of hair loss, but there are other treatments and medications that have been connected to thinning hair. These can include birth control, acne medication, antibiotics and blood pressure pills. Always speak to a doctor if you experience side effects  – don’t simply stop the treatment or you could end up exacerbating the condition as well as your hair loss.


You’ve identified (or been analysed by a professional) the type of thinning hair you have, as well as the cause behind it, and are looking for a solution to the problem. While genetic-related hair loss cannot be prevented, there are ways to boost the thickness of the remaining hair. 

The first step is to ensure you have a healthy diet and lifestyle. Seeing a healthcare professional can help identify any imbalances in your diet and whether this could be a contributing factor to your hair loss/thinning hair. You can also incorporate a scalp massage into your routine.

The right haircare products are also vital to ensure thicker looking hair. L’Oréal Professionnel has developed the Serioxyl range. Available in multiple formats, from a Denser Hair solution and Thicker Hair serum. Each can be used to following an analysis by your hair stylist. The result: hair looks and feels voluminous, thick and healthy.