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 • Hair  • Haircare Reviews  • Function of Beauty: Trying the Brand’s Custom Hair Mask
Reviewing Function of Beauty's Hair Mask

Function of Beauty: Trying the Brand’s Custom Hair Mask

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Main Image – Live That Glow

As a true beauty geek by profession (and the owner of some ridiculously fluffy triangle hair), I appreciate customised products that mean I can deal with my multiple hair issues in one go.

And since I’m already a fan of their leave-in conditioner – which does an impressive job of keeping my freshly washed hair from drying frizzy or too fluffy – I was particularly excited when US brand Function of Beauty launched its personalised hair mask and serum.

A first from a major hair brand, these custom products follow the same format as the line’s shampoo and conditioner: filling in a short quiz about hair thickness and type, before selecting which goals you most want to achieve, and picking the colour and scent of your products.

Since my hair takes quite a lot of taming I chose shine, anti-frizz, conditioning and straightening goals, as well as the scent Flower to the People.

So does the mask deliver on its claims?


function of beauty hair mask

Image – Function of Beauty


Function of Beauty Custom Hair Mask

There’s something quite exciting about a custom mask specifically designed for my hair. I also love that the brand uses natural ingredients in all of their products – free from sulfates, parabens, phthalates, mineral oils, gluten, and always vegan and cruelty-free. 

But is my custom mask worth it?

My mask boasts hydrating and moisturising aloe vera leaf extract, coconut oil, passionfruit seed oil – which is amazing for moisturising the hair and skin – and argan oil. It also contains baobab seed extract, a high omega-3 fatty acid which is said to be effective at treating dandruff and skin flaking.

And, this mask does a good job of moisturising and softening my hair when used once a week. I only wish I’d stuck with my normal scent of Peach & Mandarin rather than Flower to the People.

Not because the floral scent isn’t nice (it’s feminine and pretty), but because I love the peach scent so much and because I find the floral scent just a little sweet.

I also feel that while this mask definitely does help condition my hair, weirdly, I think Function of Beauty’s standard conditioner actually does a better job – leaving my hair impressively shiny and hydrated every time I use it.

For our full thoughts on Function of Beauty’s shampoo and conditioner, take a look here.


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The takeaway

Overall though, I’m still a huge Function of Beauty fan and the ability of their products to tackle multiple different concerns in one go.

I also like the commitment to including natural ingredients, and the brand’s cruelty-free ethos.

Great for: Addressing several different hair issues in one product.

Not-so-great for: Naturally perfect hair types, which could probably get away with a cheaper, simpler product.

Function of Beauty’s Custom Hair Mask is £23.00 for 222 ml, Function of Beauty UK and $24.00 for 7.5 oz/ 222 ml, Function of Beauty US



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Sally Underwood is a journalist, *serious* beauty fan, and Editor-in-Chief of Live That Glow. Formerly Editorial Director of one of Europe's largest newspaper groups, Sally has been a beauty obsessive since her teen years spent dragging her long-suffering (but immaculately-groomed) friends around every beauty counter in London. She now leads Live That Glow's editorial operations.

Expertise: Skincare, Body care
Education: University College London

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