What does caffeine do to your hair?

Caffeine may offer several benefits for hair, including: suppressing the hair loss hormone DHT. stimulating hair growth. encouraging elongation of the hair shaft.

healthline.com - What Is Caffeine Shampoo, and What Can It Do for Your Hair? - Healthline

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Share on Pinterest Addictive Creative/Offset Images We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Here’s our process. How we vet brands and products Healthline only shows you brands and products that we stand behind. Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we: Evaluate ingredients and composition: Do they have the potential to cause harm?

Do they have the potential to cause harm? Fact-check all health claims: Do they align with the current body of scientific evidence?

Do they align with the current body of scientific evidence? Assess the brand: Does it operate with integrity and adhere to industry best practices? We do the research so you can find trusted products for your health and wellness. Read more about our vetting process. Caffeine is commonly used to wake up in the morning or get over the midday hump. You might be surprised to learn that it has other benefits, especially for hair. There are arguments for and against the use of caffeine in general, and the same is true when using caffeine for hair. Regardless of if it works, brewing another pot of coffee isn’t going to do the trick. Whether it’s a tried-and-true skin care regimen, how often you wash your hair, or the cosmetics you’re curious about, beauty is personal. That’s why we rely on a diverse group of writers, educators, and other experts to share their tips on everything from the way product application varies to the best sheet mask for your individual needs. We only recommend something we genuinely love, so if you see a shop link to a specific product or brand, know that it’s been thoroughly researched by our team. Does it work? There are a lot of claims that caffeine shampoo works well. However, there isn’t clinically viable evidence that caffeine shampoo has prevents or stops the loss of hair long-term. In 2018, the UK Advertising Standards Authority ruled that Alpecin could no longer advertise its ability to reduce hair loss. This is because there’s no evidence to support the claim. While the 2007 study cited above showed that caffeine causes hair follicles to regrow in a lab, there isn’t enough evidence to prove that caffeine works with hair on the scalp. These results may be enough to be cautiously optimistic, but more research is needed. In a 2014 study , two experiments were conducted. In each, shampoo with 1 percent caffeine was applied to the chest. On one side, the hair follicles were closed with a varnish-wax mixture. On the other, they were left alone. The shampoos were washed away after 2 minutes, and blood samples were taken at different intervals over the next 72 hours. In the first group where the follicles were left open, caffeine levels could be detected in the blood as early as 5 minutes post-application. In the second group, caffeine levels weren’t detected until 30 minutes post-application. These experiments found that caffeine could be absorbed through hair follicles. It’s not uncommon for companies to provide evidence that their product does what it says it will do. When it comes to caffeine shampoo, evidence is often privately funded and not backed by the greater scientific community. Bottom line Lab studies show promising results, but real-world studies remain rare. As a result, caffeine shampoo isn’t recommended by doctors and dermatologists. Benefits of caffeine as shampoo Caffeine may offer several benefits for hair, including: suppressing the hair loss hormone DHT

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stimulating hair growth

encouraging elongation of the hair shaft

supporting strong, healthy hair growth Hair loss hormone suppression There’s a reason why men typically experience hair loss more than women. Hair loss tends to occur when DHT damages the hair follicles. Androgenic (or androgenetic) alopecia (AGA), more commonly referred to as male-pattern baldness, affects more than 50 percent of men over the age of 50. Research revealed that caffeine may be an effective suppressant of AGA. Women with higher amounts of DHT may also experience hair loss. This more commonly happens as a result of menopause. Longer hair A 2007 study found that caffeine helped block the effects of DHT in male hair follicles while also stimulating the growth of longer hair shafts. This resulted in longer, wider hair roots. Biopsies were taken from 14 male patients, 20–45 years old. Each was classified between a stage 3 and 4 on the Norwood scale, a classification system used to measure baldness. Findings concluded that the longer the follicle was exposed to caffeine, the longer the hair shaft became. Another 2014 study showed that the presence of caffeine can elongate the shaft, even after the hair follicle is exposed to testosterone. Stronger and healthier hair Coffee drinkers will be happy to hear that coffee is rich in antioxidants. These antioxidants may benefit hair, too. Treating damaged hair regularly with coffee allows the properties of the antioxidants to repair and prevent further damage. Caffeine shampoo is also useful for: removing product buildup without synthetic chemicals

rebalancing pH levels of the hair and scalp

softening and smoothing dry, frizzy hair

acting as a natural hair dye

Side effects Side effects from caffeine shampoos are minimal, but can include: scalp irritation

hair browning and discoloration

less effective results with prolonged use

How to use it For coffee to help prevent hair loss and promote regrowth, it must be applied topically. How long Even after rinsing out caffeine shampoo, the caffeine is absorbed into the scalp. The active ingredient moves through the hair shaft to the hair follicles. Due to the quick absorption, you only need to wash your hair with caffeine shampoo for about 2 minutes. How often You’ve likely heard about consuming too much caffeine. Luckily, the same risks don’t apply when using caffeine shampoo. It’s safe to use it daily, if desired. But using it more often isn’t likely to have much effect, and it may cause irritation. DIY recipes It’s relatively easy to create your own caffeine shampoo. Here are a couple recipes to get you started. Recipe #1 Coffee grounds can be dried and infused in oil. This oil can then be rubbed on the scalp directly or combined with pre-made shampoos and leave-in conditioners. Ingredients 3 oz. of whole coffee beans

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3 cups of coconut oil Directions Pour the coconut oil into a slow cooker. Add coffee beans. Cover, and cook on low for approximately 5–6 hours. Stir every 30 minutes. Strain the oil and remove the beans. Recipe #2 This recipe is even simpler. Change it up by adding some baking soda to clean your hair and scalp from product buildup. Ingredients 2 tbsp. of coffee grounds

3–4 tbsp. of shampoo

1/4–1/2 tsp. baking soda (optional) Directions Pour the shampoo into a small bowl. Add coffee grounds and baking soda, if desired. Mix well.

healthline.com - What Is Caffeine Shampoo, and What Can It Do for Your Hair? - Healthline

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