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Concentration guidelines
Below is a guide to the appropriate concentration of Fibro-Vein to use for a given size of vein. The guide is approximate since the effect will vary slightly from patient to patient and according to technique. Too high a concentration can lead to adverse effects such as pain, necrosis and pigmentation. Spider and thread veins are best treated with 0.1-0.2% Fibro-Vein.
| Vein diameter | Fibro-Vein Conc’n |
| < 0.5mm |
0.1% |
| 0.5-1.0mm |
0.2% |
| 1-2mm |
0.3% |
| 2-3mm |
0.5% |
| 3-5mm |
0.75% |
| +5mm |
1-3% |
NB These guide lines are for injections of liquid. After Thibault 1999 & 2001
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