Doctor insights on:
Different answers: I have read that one time use might not even show up. Most answers say that if use is regular, then it will stay for about 2-3 months. One person said that his parents, both of whom are police, told him that it could stay for a year. Hair grows at 0.5 inches per month, so they usually cut off three months of hair growth (1.5 inches) for the sample for detection. Why not just not use the stuff? ...Read more
Drug Testing & Hair: No. Absolutely not. These metabolites are buried within the hair fibers and they will not be 'lost' with 'detox' shampoo. Until you cut your hair you will test positive for any drug you have used. ...Read more
Forever: Sort of... The drug goes into the hair and stays in the hair that grew during that duration. So if the mj was used in in june and the hair grew 1/2 inch in june, it would be in that 1/2 inch, and not in the 1/2 inch that grew in july. So when you test the hair you know that hair close to the follicle represents recent use. ...Read more
Regarding hair follicle drug test, will THC be be present in hair follicles four months after quitting?
Genetics...: Generally this type of hair condition is related to genetic predisposition and there is little to do about it. If nobody in your family history has ever had this problem, see a doctor. ...Read more
Hair brushing/growth: Not that I am aware. Talk with your doc, if thin brows, may be genetic or due to condition such as a thyroid problem. ...Read more
Depends on use.: It depends on how often you use it. If you used it only once it can be detected by blood for 12-24 hours while it is detected in urine from 1-7 days. With regular use it can be detected in blood for 2-7 days and in urine anywhere from 1-100 days even if a heavy user. Age, height, weight, metabolism all are considered factors. ...Read moreSee 1 more doctor answer
Avoid if possible: At least one study says no. Note: hair always gets a little damaged when applying color, even if you're going back to your natural hue. Both permanent and semi-permanent dyes contain hydrogen peroxide, which chemically changes the color of the hair pigment. http://www.ncbi.nlm.nih.gov/pubmed/11982643. ...Read moreSee 1 more doctor answer
NO: But it causes other problems. Throw it away. ...Read more
Beard hair: If you mean transplanting beard hair to the top of your head then generally the answer is NO. Beard hair almost always has a different texture than hair on your head and using your beard hair as donor hair will leave permanent scars on your face from where the hair is removed. ...Read moreSee 1 more doctor answer
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