These days, we see many claims of ‘paradoxical hypertrichosis’. Most of the time, these claims are inaccurate – they are not seeing this at all. So, what do these terms actually mean? Let’s define these two terms… Paradoxical hypertrichosis PH (I can’t be bothered writing this out all the time!) occurs when hairs are observed… Continue reading Synchronised hair growth vs paradoxical hypertrichosis
Tag: hair-care
Should we wax or pluck before laser/IPL hair removal? The science…
This is an interesting question. Virtually everyone’s initial response would be a resounding “NO”. “Why should we? We would be removing the target we are trying to destroy!!” Well, yes, of course. That’s obvious. Except, it isn’t… A telogen hair, about to transition into anagen 1. To answer this question properly, we need to look… Continue reading Should we wax or pluck before laser/IPL hair removal? The science…
“Synchronised hair growth” – Yes – it is real!
This issue keeps appearing in online forums. Many laser/IPL operators talk about ‘lots of hair growth’ usually after a few sessions. So, I investigated this with my computer model. I had developed this model a few years ago to look at the ‘best’ time intervals between repeat treatments. Last year, while researching laser/IPL treatment of… Continue reading “Synchronised hair growth” – Yes – it is real!
The hair growth cycle in humans
Human hair grows according to a cycle. This cycle can be broken down into three main phases – anagen, catagen and telogen. To understand this process, we need to look closely at the follicles, and their structure. All follicles are comprised of two distinct parts – the upper, permanent part which includes the stem cell… Continue reading The hair growth cycle in humans
The “Hairy Trinity” – How are fluence, follicle depth and treatment frequency related in hair removal treatments?
As many of you know, I like to build and develop computer models investigating how light energy interacts with skin constituents etc. I’ve been doing this since 1987 and am now beginning to get the hang of it!! One model I built, a few years ago, looked at the hair growth cycles across the body.… Continue reading The “Hairy Trinity” – How are fluence, follicle depth and treatment frequency related in hair removal treatments?
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