how to grow thin hair

How Keratin Treatments Affect Thin and Thinning Hair

Smooth hair doesn't have to fall flat.

For those of us with fine hair, smoothing products are a double-edged sword. Yes, they do help us keep frizz, a.k.a. public enemy no. 1, at bay, but a lot of the time, the payoff is substantially limper-looking hair—something us fine-haired types are not really willing to risk. This Catch 22 then becomes too much of a headache, so looking for keratin hair treatment for thin hair just falls off our list of priorities.

But guess what? Turns out there’s a way we can actually have our cake and hair flip it too. Read on to learn about the best keratin treatment for thin hair and get inspired to care for your hair type at home:

Keratin Treatment for Thin Hair

Learn more about a professional keratin smoothing treatment and keratin hair care in general:

keratin treatment for thin hair
Damaged hair can cause hair to be thin.

First things first, what is a keratin treatment? Keratin is a protein naturally found in your hair, skin, and nails. When you add keratin protein for hair to your regular hair care regimen as an ingredient, it can serve as protection against damage. Keratin has the ability to both repair and protect, helping you rewind damage that’s been done. It can also guard against future trouble by reinforcing proteins in the hair shaft lost by heat, over-styling, or chemical processing.

The truth is, keratin treatments come in many different forms: There are in-salon professional treatments, keratin-infused shampoos and conditioners, and of course, keratin-based styling products. While many people do love the silky smooth benefits of an in-salon professional treatment, not everyone is a candidate for one. Those with thin or thinning hair might find that the treatment can either be too harsh on their thin strands or flatten them, thereby making the appearance of their thinning hair more noticeable.

At-Home Keratin Treatment for Thin Hair

For those who would prefer an at-home solution geared towards thin or thinning hair, wash with TRESemmé Repair Keratin Smooth Shampoo and Conditioner. This keratin protein shampoo and keratin deep conditioner duo are great for controlling frizz without weighing down the hair. It’s formulated with hydrating Moroccan Oil that softens and smoothens, yes, but also with a lighter after-feel.

For when you need a bit more polish—say, on date nights—include a few spritzes of TRESemmé Pro Collection Keratin Repair Leave-In Treatment into your blow-dry regimen too. We love this product because it helps repair the appearance of split ends, leaving your hair healthier and stronger.

If your strands are particularly parched, you can also treat yourself with Suave Simply Styled Anti-Frizz Smoothing Serum to help smooth them back to their less-porous state.

So, What Causes Thinning Hair?

Thinning hair can be caused by a variety of reasons that aren’t always preventable. It’s important to know what may be making your hair thinner, so keep scrolling to find out the causes for this hair concern.

What Causes Thinning Hair?

Shedding is a normal part of life; no matter what hair type, length, and texture you have, you will experience hair shedding at some point. Everyone loses strands on a daily basis. A normal amount of hair loss is considered to be “approximately 50 to 150 hairs daily,” according to Unilever’s Peter Bailey, Global Technical Manager for Hair Care.

Shedding can be attributed to the hair growth cycle which revolves around four key stages. Anagen (the growing phase), catagen (the transition phase), telogen (the resting phase), and exogen (the shedding phase). After the shedding stage, the hair follicle goes back into the growing phase, completing the cycle. When the number of strands in the telogen phase increases and the number of hairs in the anagen stage decreases, this is what leads to thinner-looking hair.

If you’re experiencing thinning hair, there are a number of reasons why it may be happening. There’s no universal answer to why your hair might appear to be thinning. Below are three top reasons why people experience thinning hair:

Age & Genetics

Both your age and genetics can determine how your hair cycle functions and, as such, can affect the anagen and exogen phases which will lead to hair loss. According to Peter, “It’s common that the anagen (growing) phase in your hair cycle will decrease in length over time, so the hair may become weaker and thinner after each cycle as you get older.”

Hormonal Changes

Our hormones are constantly changing, especially when you’ve gone through a major transformation such as a pregnancy or menopause. The change in hormones in your body after giving birth can lead to changes in your hair cycle. We recommend that you visit a medical professional for a clear diagnosis.

Hair Damage

If your hair is shedding or breaking easily, you may want to look into your current hair care routine. How you towel-dry, brush, or style your locks can all make a difference to your overall hair health. So be gentle with your locks. After washing, blot hair softly with a micro-fiber towel to absorb moisture from your hair without damaging the strands. A keratin treatment for damaged hair may be able to help you repair your strands!

No matter what the reason is for your hair starting to thin, consider a keratin treatment for thin hair to give your strands a boost of smoothness and shine. Good luck!

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