Help - middle aged hair!

[nickEcave]

I have very thick, ever so slightly wavy shoulder length hair which is probably around 50% grey by now. I've been dying it with semi-permanent home dye for years and over the past year or two it's been getting drier and drier. I get the ends trimmed every 3/4 months, use a colour protecting shampoo, conditioner and serum and only wash (and blow dry) it twice a week but it's getting crispier and frizzier. Has anyone else in their 40s with hair like this found a way of making it sleek and youthful looking again or am I asking for the holy grail? Going grey is not an option I'm afraid

How difficult/easy is the Amazon Keratin kit to use?

My hairdresser recommends putting coconut oil through your hair and leaving it for an hour or overnight before washing it. I've only got around to trying it once and the oil was only in half an hour but my hair was a lot less candyfloss-like afterwards. It's a bit of a faff but it's probably ok if you get in the habit (instead of forgetting every time until you are in the shower washing your hair and it's too late!)

How difficult/easy is the Amazon Keratin kit to use? if you are ok at straightening your hair all round yourself then it's easy. I do recommend buying a heat protecting glove as you have to straighten each strand at least 5 times so hair gets hot. If you can't straighten well yourself you need a friend to help out. personally I find it really easy,you wash with the clarifying shampoo then dry your hair, put the mix on dry hair and comb through so all your hair is covered, leave for 20 mins then dry it until absolutely dry, then you take small sections and straighten each bit 5 times. leave for 72 hours without getting wet, tying up, pushing back behind ears or anything, straighten again if it kinks a bit overnight, wash out after 3 days and voila, shiny smooth straight hair.