Once your hair is collected, it’s washed to remove any external contaminants, chopped up, and then digested in a solution meant to break it down into its components — largely the protein keratin, together with any other compounds that make their way into the hair shaft. Usually, that solution is put through an ELISA (enzyme-linked immunosorbent assay) screen, a laboratory procedure that uses specific antibodies to bind the target molecule of choice — in this case, THC. (More specifically, THCA, a direct metabolite of THC.)
The dreaded hair test is one of the most used tests for finding drug users. It’s less invasive and takes less time than urine and blood tests, but it’s also controversial and has been known to cause false positives — even coming in contact with smoke can be enough to mess up your results. But until this issue is sorted out, it’s worth knowing exactly how hair tests work, especially for one of the most common drugs around: weed.
The most commonly cited number for the amount of time marijuana can be detected in your hair is 90 days. That time frame is calculated on the basis of how long it takes for hair at the root to grow past the scalp, and it takes into account the part of the hair that drug testers sample.
How long does weed stay in your hair?
You smoked with your friends last weekend, but in the cold harsh light of Monday, you might be having regrets — especially if your employer conducts drug hair tests. From the moment you get high, it takes about 90 days before you’re free and clear when it comes to the THC in your hair. But exactly how long does weed stay in your hair? Here’s what you need to know.
The final concentration of the chemical in a sample of hair gives the final verdict. The “confirmatory level” of THCA that Quest Diagnostics uses is 0.1 picograms per milligram of hair. Anything above that pretty much confirms you’ve used marijuana in the past three months.
How does weed get in my hair, Anyway?
There are a lot of variables in hair testing for marijuana that make it a very controversial way to decide whether or not a person is fit to have a job. As mentioned above, false positives are very possible. It’s still not entirely clear, for example, whether hair can incorporate marijuana-derived compounds after simply being in the same vicinity as marijuana smoke.
According to Quest Diagnostics, one of the premier drug testing labs in the United States, it takes five to 10 days before hair at the root pushes out past the scalp and into the world. In a drug test, samples are usually taken from hair 1.5 inches from the scalp. Since hair grows at about 0.5 inches per month, then you have about 3 months, or 90 days, before you’re in the clear.
Cigarettes have been found to damage the DNA of your hair follicles, and smoke is a pollutant that can damage your hair.
Beyond biotin, studies have shown that not getting enough iron and zinc in your diet can be bad for hair health.
A 2019 review of studies on minoxidil affirmed that it improved hair growth in both men and women who suffer from pattern hair loss.
It is unknown exactly what makes minoxidil work, but it is believed to work by stimulating hair follicles to enter the anagen (growth) phase.
Lifestyle Tweaks to Reduce Hair Loss
Some good sources of zinc include crab, cashews and oatmeal. To increase iron intake, add spinach, meat and seafood to your diet.
If you’re concerned you’re not getting enough in your diet, a biotin supplement could help.
This Hims Hair Power Pack contains both minoxidil and finasteride.
This biotin gummy also includes vitamin D. Low levels of vitamin D have been found to contribute to hair shedding.
Some people seem to think that marijuana can lead to hair loss.
The consumption method of cannabis is really critical. It is recommended to use a vaporizer if you want to enjoy its anti-inflammatory benefits, or perhaps edibles or even tinctures.
Needless to say, many men and women are generally unhappy with the thought of losing their hair. As a result, hair growth products are a part of a multi-billion dollar industry. So where does cannabis stand in this hair loss equation; is it a solution or a culprit?
There are so many stigmas still surrounding the world of cannabis, but whether you love it or are still unsure, you cannot deny its trending power. Every day more studies about the potential health benefits of cannabis are coming out to the public.
What cannabis product is most effective for hair growth?
Cannabis oil supports hair health and promotes growth when used topically by supplying nutrients, moisturizing and strengthening the hair shaft, and stimulating blood flow. By reducing inflammation and irritation, it also improves scalp health.
Why is this important? Because hair loss treatments such as Finasteride work by reducing your overall DHT levels. Dihydrotestosterone (DHT) is an androgen. An androgen is a sex hormone that contributes to the development of what is thought of as “male” sex characteristics, such as body hair. But it can also make you lose your hair faster and earlier.
Apply cannabis oil directly to your hair as a topical and your follicles will soak up the formula filled with beneficial nutrients. In addition to feeding and moisturizing your hair, you will stimulate hair growth as you massage the cannabis oil into your scalp. As you work your scalp with your fingertips, blood flow to the scalp increases.
Types of hair loss
When your hair is thinning one of the first things you should do is try to figure out what is causing your hair loss. Knowing can help stop or reverse the loss in some circumstances. Hair loss has been proven to come as a result of many factors, but can smoking weed cause hair loss?
Telogen effluvium and Anagen effluvium are other, more rare forms of hair loss.