Comments on: Does rosemary oil work for hair growth? The science

By: Michelle Wong

Michelle Wong — Sat, 28 Sep 2024 09:54:53 +0000

In reply to Lena. The need for low pH shampoo is a myth, I've had a video on it planned for a while!

By: Lena

Lena — Sun, 08 Sep 2024 01:09:35 +0000

I have a question about low pH shampoos and conditioners. Low pH shampoos are good because they close the hair cuticles and reduce negative charge of the hair which makes them smoother and shinier, right? But would that affect the ability of positively charged silicones to adhere to the hair? Like, am I wasting my amodimethicone conditioner when I use a low pH shampoo beforehand?

By: Nyla Rose

Nyla Rose — Sat, 07 Sep 2024 11:26:36 +0000

It’s great that you’re diving into the science behind rosemary oil and its effectiveness for hair growth. After reading this post, it’s clear that a lot of the hype comes from misinterpretation of a single study. While rosemary oil might have some benefits, comparing it directly to minoxidil—especially the 5% version used by most dermatologists—seems like a stretch. Always good to stay cautious and look at the full picture, not just headlines!

By: Ankit Dhama

Ankit Dhama — Sat, 07 Sep 2024 11:24:25 +0000

Rosemary is in hype currently. But it creates itchiness in my scalp after the application, is is normal?

By: ANM

ANM — Mon, 05 Aug 2024 19:51:22 +0000

Thank you for explaining how to interpret an academic article as well as how to evaluate the credibility of this one! I haven’t been in school for a few years now but I wish that I had this to read on day one.

By: k a

k a — Wed, 24 Jul 2024 19:39:16 +0000

this is all really helpful information but what would you recommend instead for thickening and regrowth?

By: Priscilla

Priscilla — Thu, 28 Mar 2024 10:22:51 +0000

Where would we be without you Michelle?! My first question would be how does this get published in supposedly ‘peer reviewed’ journal with such obvious errors? Who is peer-reviewing it? It is so easy to manipulate data to tell the desired story, especially around such an emotive (and lucrative) issue such as hair loss. It tells you everything you need to know about the effectiveness of Rosemary that they didn’t test it against the standard 5% minoxidil dose.

By: Matt

Matt — Fri, 15 Mar 2024 18:53:18 +0000

Excellent article. I’m very glad that there are people like you to put studies like this under rigorous scrutiny.
I would like to hear your opinion on castor oil as well. It is commonly recommended on Reddit and other places for use on eyebrows and lashes. Similar to rosemary oil, castor oil seems to be associated with ‘hair growth.’ However of course being a ‘cosmetic’ product rather than a ‘drug,’ it seems there is limited information on the actual effectiveness. The general consensus appears to conclude that castor oil may improve hair growth due to it containing ricinoleic acid and fatty acids, but there being no studies specifically on castor oil it is only speculation.
At the time of writing this comment (3/15/24), searching “castor oil hair” on PubMed returns 13 results, of which less than half seem to be semi-related, and none are clinical trials. Searching “castor oil eyebrow” returns no results. Finally, searching “castor oil eyelash” returns 2 unrelated results.
I very much lack knowledge on this subject, so I would appreciate it if you were to take a look :>