Charli Howard Says This Collagen Supplement Upped Her Skin’s Glow In Just Two Weeks

'I've been putting one non-flavoured sachet into my morning tea. You can't even taste that it's in there, it just dissolves straight away. After just two weeks of using it I had people saying how glowy and bouncy my skin looked!' - Charli Howard.

Beauty Pie have put a lot of research into their collagen supplement. In a randomized, double-blind placebo, controlled and ex vivo study, a 10g daily dose (one scoop) increased skin moisture by 28% after 8 weeks and decreased collagen fragmentation by 31% after 12 weeks. That's a lot to take in but think plumper, dewier skin in the long run. It's pricey for non-members but if you're a Beauty Pie member already it's a no-brainer. Oh and the flavour? A hint of strawberry.

'Our collagen powder is made with Marine Collagen from deep sea cod skin, it's 1.5x more effective than other collagen sources,' says Jessica Sepel, nutritionist and founder of JSHealth. Loved by Millie Mackintosh, the formula also contains vitamins, minerals and amino acids to support collagen formation. Oh and an added bonus – it tastes like blueberry so makes a great addition to any smoothie.

This is the stuff Jennifer Aniston adds to her coffees and smoothies so it's got to be good right? She's so enthusastic about the brand that she's become their Chief Creative Officer. The powder is available at Boots and also at Cult Beauty.

This is a vegan elixir that works to plump your skin whilst nourishing your gut too. It tastes like wild berries too, what's not to love?!

There's more to this collagen supplement than insanely gorgeous packaging. The marine collagen used is sourced from deep water fish whilst preserving the environment and marine life (there's no harvesting or large scale extraction). You're getting the best of the best in the sure and certain knowledge that our planet is being cared for in the process. That and this packet is highly Instagram-able right?!

Bare Biology is considered one of the best producers of fish oil around, and it is stringent about avoiding any non-essential ingredients. In short, you know you're getting the good stuff.

'I take collagen but I think of it more as an all-round body helper as opposed to a skin-specific supplement. I like powder forms of collagen best. If you're a bone broth person, which is a great source of collagen, then great but when it comes to taking collagen every day I prefer to use a powder supplement. I like Puori Pure Collagen Peptides, £29.99. I do believe with things like collagen, be careful where you get it from get a really good quality one. There are vegan forms of collagen out there too.' - Rose Ferguson, nutritionist.

The Dose & Co premium collagen collection is a supplement range founded by naturopath and nutritionist Libby Matthews and supported by business partner and spokesperson Khloé Kardashian. This unflavoured collagen powder is free from gluten, dairy, soy, preservatives, and artificial colours. Blend into coffees, tea, shakes, smoothies and other recipes.

As part of her collaboration with the London Aesthetics Company Gemma Collins has launched her very own collagen supplement. These marine collagen capsules are gluten and dairy free. Take one capsule before bed each night with water.