Kajol, who has made her comeback as the face of Olay Total Effects, has been in the film industry for over two decades. She says initially she was working too hard and neglecting her skin.

"I didn't (take care of my skin) earlier, when I first started out. I was too young at that point of time. I was working too hard. But I think as you grow older, you realise that you're changing and the world is changing. I adopted a skincare routine and still do," Kajol told in an email interview from Mumbai. 

Getting into details about the skincare routine that she sticks to, the mother of two said: "The best and easiest way is to wash, cleanse, moisturise, take off your make-up every night, drink your eight glasses of water."

"All these things really make a difference. When you do that little bit everyday; wash your face properly twice a day, put your SPF, save yourself from the sun. All this actually and genuinely, makes a difference."

"Often people think ageing is a question of 'I'll do this when I'm old'. But it's not right. You have to take care of yourself and your skin early when you start seeing the signs of ageing -- dark spots, dull skin, uneven skin tone. Like you say your body is your temple, so is your face. You have to take care of both."

The 42-year-old actress, who was last seen on the silver screen in "Dilwale", is happy to back the beauty product. 

"I have been associated with Olay officially since 2009. So I was really happy to talk about it and become an official ambassador for the brand," she added.