The teenage model has been given many beauty tips and tricks by supermodel Kate, 44, and she has learnt to limit her application of products to achieve the best results.
Speaking to Glamour, Lila - whose father is magazine editor Jefferson Hack - said: "Mum always says, 'Less is more. To go with a fresh face and not use too much bronzer!' So I usually keep my look pretty simple. I think it's better not to wear makeup all the time and to take a break that makes it exciting when you do wear a look. As long as it's not green eyeshadow she doesn't mind me wearing makeup for school. If it's natural and fresh, that's fine."
Lila - who was recently announced as the new face of Marc Jacobs Beauty less than a week after celebrating her 16th birthday - admitted becoming a beauty ambassador for the cosmetic brand was a "dream come true" and her go-to look is a "gold coppery eye".
Lila added: "When mum told me Marc wanted to couple up with mum and me, I couldn't believe it. It was such a dream come true. It feels amazing [to be the face of the campaign].
"I love a gold, coppery eye as it's great with my green eyes. I just tried the look out at home and loved it. The You Slay colour in the palette is the perfect shade for this."
Lila also revealed that her mother Kate "steals" items out of her beauty bag and the teen makes sure she cleanses her skin properly "before bed".
Lila said: "Recently, mum stole my new Velvet Noir Mascara. Don't worry though - I'll be getting it back! I always use the Beauty Elixir spray every day before moisturising. It works! And it makes you look more glowy and dewy. I always wash my face and moisturise before bed."