Happy Hair - The definitive guide to giving up shampoo: Save money, ditch the toxins and release your hair’s natural beauty with No Poo

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A more dangerous, albeit less prevalent, side effect is cardiovascular in nature. Minoxidil was developed as a blood pressure medication, and it acts as a vasodilator, relaxing the muscles that control the width of your veins. As a result, your blood flows more freely, lowering blood pressure. If you already have low blood pressure — either genetically or as the result of surgery or medication — minoxidil could put you at serious risk. It can also interfere with other medications that are intended to interact with blood pressure or that can affect blood pressure as a side effect. Googling the subject is great, but this book filters out a lot of the info that can be confusing and explains things very clearly and simply. I particularly enjoyed the science bit and ideas for waxy hair!”

Piraccini, B. M., Scarci, F., Jansat, J. M., Falqués, M., Otero, R., Tamarit, M. L., Galván, J., Tebbs, V., Massana, E., & Study Group, T. F. (2022). Efficacy and safety of topical finasteride spray solution for male androgenetic alopecia: A phase III, randomized, controlled clinical trial. Journal of the European Academy of Dermatology and Venereology, 36(2), 286-294. Three years on and my e-book has sold thousands of copies, been translated into Spanish, and Portugese, and now I write about natural beauty experiments for the UK’s biggest beauty magazine, Cosmopolitan.One note about Happy Head’s oral minoxidil: it comes in 2.5mg tablets that your doctor will ask you to break in half for daily use. Studies show reliable efficacy with a reasonable safety profile up to 5mg, but there is a much higher chance of unwanted hair growth at the 5mg dose. 27

If you have the option, it’s better to avoid heat styling tools. You should rather let your hair air dry where possible, and use other methods of styling to get the desired look that you’re going for. Now is a better time than never to embrace your natural look, meaning, if your hair is curly, let it be curly and avoid using straighteners that are most likely going to damage your hair. By all means, use heat styling tools for special occasions, but for your day-to-day look, focus on enhancing what you’re naturally working with! The Importance of Your Diet For Happy HairWhile Happy Head does better here than they did in the topical minoxidil comparison, there is still a clear and meaningful difference between them and Roman. This pattern repeats itself with oral minoxidil, where Happy Head outperforms Hims and Keeps (neither of whom offers it) but falls short of Roman’s pricing and dose options.