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
Tag: health
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?
Fitzpatrick Type – what does this really mean and how does it affect our laser/IPL skin treatments?
Here we go again! Fitzpatrick – the most mis-understood concept in laser/IPL therapies. Everyone who does laser/IPL treatments on the skin talks about the “Fitzpatrick”. Yet most people don’t really know what it means! Here is my take: There are two things you MUST understand: Dr Fitzpatrick was an American dermatologist who devised a scale… Continue reading Fitzpatrick Type – what does this really mean and how does it affect our laser/IPL skin treatments?
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