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If you've ever wondered how Jennifer Aniston maintains an unwavering golden glow no matter the decade or weather, there are a few staple beauty products the Friends actress relies on for a radiance boost.

And, alongside an arsenal of glow-enhancing heroes (including the eye-watering Gillian Dempsey Gold Sculpting Bar, Vital Proteins Collagen Powder and Tatcha Serum) lies one seriously affordable–and sustainable–product: a humble cleansing bar.

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Yep, forget luxury bottles laden with exorbitant ingredients and fancy packaging, Aniston has long sworn by the work of the Neutrogena Transparent Facial Bar.

‘I wake up and wash my face with Neutrogena face soap. I use a serum and then a Dr Hauschka day cream – that’s it,’ Aniston previously told Mail Online.

The hypo-allergenic formula helps remove impurities and unclog pores whilst still being gentle for those with sensitive skin. As for the hero ingredient? Glycerin works by trapping water into the skin helping it look hydrated, plump and glow-y.

And in even better news: you can snap up a pack of three from Amazon for just £15.60, making it just a fiver per cleansing bar.

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Effectively a solid version of a standard gel or liquid cleanser, these bars offer a low-waste alternative to traditional facial washes. That's because, they strip away the need for excessive packaging and are generally packaged in cardboard which is biodegradable, too.

Thanks to a new wave of cleansing alternatives from the likes of CeraVe and Kiehl's you can now reap the skincare benefits of your beloved double cleanse but in a more eco-friendly manner.

Below, some of WH's beauty editor's top rated cleansing bars to choose from: