Emily Ratajkowski used to have "a lot" of bad hair days.
The 27-year-old model-and-actress has "streamlined" her haircare routine and now uses minimal products, which has given her great results.
She said: "I actually used to have a lot of bad hair days because my hair is naturally straight, fine, and tangles easily.
"But since I've cut back and streamlined my routine to just three products, it's genuinely changed my hair.
"I'm using Kerastase Resistance Bain Extentioniste shampoo and Fondant Extentioniste conditioner, alongside Kerastase Aura Botanica LAit de Soie. This combo works."
To maintain her clear complexion, Emily is always careful to clean her face thoroughly before she goes to bed.
She told Grazia magazine: "I never go to bed without properly cleansing my face and I swear by using retinol regularly to help resurface my skin.
"If my skin is feeling drier than usual, I'll skip the retinol and go straight for a hydrating moisturiser or oil.
"In the day I always wear SPF and keep my face out of the sun."
The 'Gone Girl' star has regular facials and swears by LED light therapy.
She said: "Joanna Vargas does an incredible microcurrent facial, which is amazing when I've been travelling and my skin is dehydrated - it literally feels like a face lift.
"I also go to Shani Darden for extraction and healing LED light therapy.
"Both treatments really focus on tightening your skin up, which is what I look for."
Meanwhile, Emily previously insisted she "struggles" with her self-image just like everyone else and says "every day is a different day" for her.
She said: "Truth is, we're all completely struggling with our self-image and worrying about what people think of us. Every day is a different day for me. Some days, it's like I am the absolute best; I cannot believe I exist on this planet. Then other days, you really don't want to leave the house."