I'll give 2 experiences. My wife at the age of 53 or somewhere around there thought she'd give it a try. We started at 5mg. and about 5/6 days in she balloons up, holding a shit ton of water. So we split the 5mg and she takes 2.5mg. with no change, still held water, and a lot. She finally just stopped taking it.
Our daughter who was around 20/21 at the time says she wants to try Var, so i give her the bottle that my wife was using, she was fully aware of what my wife just went through but figured she'd give it try anyway. She dives in and take's 10mg right out of the gate. Her experience was great, no sides, no water and made amazing gains in the 6 weeks she was on.
Same lab, same bottle but 2 very extreme experiences.