Mustard Oil is considered extremely good for hair growth. Using it regularly will keep your hair from going gray. Yes, if you want a proof, you can ask your grandmothers and ladies of the same age who have been using mustard oil since years and still have dark hair. Of course, it also depends on your diet. But, instead of dying, you can saturate your hair with mustard oil every night before you shampoo your hair and enjoy the benefits. Mustard Oil does not allow fungal growth making it useful for avoiding scalp infections. The oil is considered to be highly beneficial in treating dry and damaged hair. It is known to prevent hair loss and promote hair growth. You can couple the mustard oil with castor or coconut oil to massage on your hair for beautiful shiny smooth hair. And, you may even infuse the mustard oil with various herbs as instructed in the Hair Oil recipe for Faster Hair Growth for better results.
Coming to skin care with mustard oil, its a very debated topic that whether it should be used on skin or not. Actually it depends on how the mustard oil has been produced or extracted. The cooking oil is produced by simply pressing the seeds and extracting the oil where as the essential oil is produced by mixing the seeds with water which produces a compound Allyl Isothiocyanate which irritates the skin. So, if you are planning to use mustard oil on your skin, go for the cooking oil which is available in the general stores. Make sure that you do a patch test before using the oil. If your skin is sensitive and hypoallergenic, its best not to use the oil. You should stop using the oil immediately if you suffer from any skin reaction. Always prefer a cold pressed mustard cooking oil. Though mustard oil has been used for centuries for massaging purposes, I would advise you not to use this oil on children and babies or you can perform a patch test before you use it on them since their skin is much more sensitive than ours. One thing to consider is that if you feel warming sensations after applying the oil, it is not the skin reaction but the increase in blood circulation which is a good thing and surely not a reason to stop using mustard oil.
And, I surely invite your opinions on the usage of mustard oil on skin.