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Video from Bogdan (EN-subtitles)
Bogdan shows on the board macrophages and other fascinating processes that occur during the removal of pigments:
What about macrophages?
Вы You might say:
"What about macrophages? We’ve been told about them by smart permanent makeup artists on the internet."
Answer:
Macrophages don’t touch iron oxide pigments. Again, because it’s biogenic material. Only transferrin deals with them.
Macrophages are all about organics.
Macrophages eat everything that isn’t nailed down and hinders the body. During inflammation, their numbers increase.
When we started making tattoo ink, we wondered — a tattoo on the body doesn't just disappear over time.
Yes, it changes color slightly over decades, and in areas of tight clothing contact, it may even be lighter due to constant friction. So, macrophages don't touch pigment particles?
But eyebrows do fade? Turns out, they do.
The speed of blood and lymph
One thing—the speed of blood and lymph flow at the site where pigments are injected.
For example, the number of capillaries and vessels per square meter of facial skin (eyebrows, eyes, lips area) and per square meter of back or shoulders is significantly different. And of course, there's much more of that on the face.
If fluid is constantly replaced at the pigment injection site, any organic pigment (even though we remember that pigment is a solid and insoluble substance) will slowly dissolve and be excreted by the body.
The organically tattooed areas on the face will lighten. Due to blood flow, lymph flow, and somewhat due to macrophages, when the pigment is dissolved enough for them.
An undissolved pigment won't be eaten by macrophages; it’s physically impossible.
Organic pigments break down because they dissolve, and they dissolve because they break down. Such is the paradox. It all depends on the chemical and crystalline structure of the specific pigment.
And since manufacturers (the Chinese) of the pigment itself (dry, not the ink) care about its stability, we won’t see any shift towards soluble pigments.
You remember that no one makes special pigments for permanents and tattoos, right?
We just use suitable pigments for making inks.
