I've been using grapeseed oil for the last two months and I'm loving it!
I use grapeseed oil to seal after moisturizing my hair. This oil is very light and absorbs in my strands very quickly. It loosen my curl pattern, making stretching easier. I've also noticed that I do not need to do protein treatments that often when using it consistantly.
After finishing moisturizing and sealing, I put on my hairline all the leftover on my hands. I start to notice a bit more baby hairs. I haven't been doing anything special to my hairline, so I think grapeseed oil might have an influence on hair growth. This needs to be investigated a bit more though.
I've also experimented with grapeseed oil in skincare. I have combination skin on the drier side and prone to break out.
After removing my makeup at night, I apply a mix of grapeseed oil and few drops of eucalyptus essential oil and tea tree oil on my skin. I wake up the next morning with a smooth, hydrated skin and a bit less black heads. I've been doing this method for 3 weeks now and definitely see results in smoother skin, almost no break out nor black head.
I'm kicking myself for not trying this before!
I've used several oils in my hair journey and can definitely say that this oil will stay in my top list.
Below some links for tips on grapeseed oil for hair and skin