My Favourite Tea for Acne-Prone Skin (And It’s Not Spearmint)

Jun 20

After 25 years working inside the beauty industry and healing my own acne, there is one cup I keep coming back to. Simple, unassuming and backed by real research.

Everyone asks about spearmint. And yes, I love it too.

But the tea I’ve been quietly recommending for years, the one sitting in my own kitchen every single morning, is green tea. Not matcha. Just green tea. Simple, unassuming, and one of the most researched botanicals for acne-prone skin.

I want to share why it earns such a prominent place in an acne-supportive routine and what the science actually says.

A Little Context: Who I Am and Why This Matters

I’m a nutritional therapist specialising in acne. Before that, I spent 25 years working inside the beauty industry with an insider’s view of the products, the promises and sometimes the gap between the two.

I also cleared my own acne. Not through a single fix and not through nutrition alone but through a combination of nutrition, lifestyle and a much deeper understanding of what my skin was actually responding to. That journey is part of why I do this work and why I take a careful, evidence-informed approach when I make recommendations.

Which brings me to green tea.

What Makes Green Tea Different for Acne-Prone Skin

The key compound in green tea is EGCG (epigallocatechin gallate). It is the most abundant catechin in green tea, and it is exceptionally well studied. Here is what the research tells us it can do for acne-prone skin:

Anti-inflammatory: EGCG has potent anti-inflammatory and antioxidant properties, helping to calm the chronic low-grade inflammation behind acne lesions.
Antiandrogenic: EGCG has lipid-lowering and antiandrogenic properties, which can help reduce excess sebum production one of the foundational drivers of acne.
Insulin sensitivity: Green tea supports more stable blood sugar. This matters for skin because blood sugar spikes drive up IGF-1, which in turn increases oil production and accelerates the cycle that leads to breakouts.

What Does the Research Actually Say?

This is where I like to be precise, because overclaiming does nobody any favours.

A 2021 systematic review and meta-analysis published in Phytotherapy Research (Kim et al.) pooled five randomised controlled trials and found that green tea extract significantly reduced the number of inflammatory acne lesions. The effect was meaningful and the evidence is from controlled trials, not anecdote.

The evidence is stronger for topical green tea application than for oral consumption and most studies used concentrated extract rather than brewed tea. That distinction matters which is actually why I use both in my Inside & Out approach. More on that below.

My Inside & Out Approach: Drinking It and Applying It

In my clinic, I work with what I call my Inside & Out method addressing acne through both nutritional support and targeted topical care. Green tea happens to work on both levels, which is part of why I find it so compelling.

Inside: the cup

One to two cups of brewed green tea a day is a meaningful addition to an acne-supportive nutrition plan. The anti-inflammatory, antiandrogenic, and blood sugar-stabilising effects accumulate quietly over time. It is not a quick fix but nothing worth having for skin usually is.

Out: topical EGCG

Topically, EGCG works more directly on the skin’s surface, calming redness, reducing inflammatory signalling within the follicle and helping to limit post-inflammatory damage. One product I rate for this is the Dermaviduals EGCG Liposomes. It is not marketed as a conventional acne treatment in the way that benzoyl peroxide, adapalene, or salicylic acid are, but the liposomal delivery means the EGCG is carried deeper into the skin where it can be most effective.

Used as part of a broader acne-focused regimen, it supports: reduced inflammatory redness, antioxidant protection within lesions, mildly reduced sebum activity, gentle antimicrobial effect, and calmer post-inflammatory skin. It works best alongside, not instead of, a wider skin and nutrition strategy.

How to Get the Most From Your Cup

The small details here genuinely matter:

Temperature: Brew at around 80°C rather than boiling. High temperatures degrade the catechins — including EGCG — and also increase bitterness. Let your kettle cool for a couple of minutes before pouring.
Cover the cup: This is a tip I give in clinic, cover your cup with a saucer while it brews, or use a teapot. Green tea contains volatile aromatic oils, and if the cup is left open, those oils (and some beneficial compounds) simply evaporate into the air. A saucer costs nothing and makes a real difference.
Quantity: One to two cups a day is a sensible amount. More is not always better very high doses of EGCG in supplement form have been associated with liver stress, though this relates to concentrated extracts rather than brewed tea.
Timing: Green tea does contain caffeine less than coffee, but enough to be worth noting if you are sensitive. Morning or mid-morning works well for most people.
Quality: A good quality loose-leaf green tea or a reputable brand of green tea bags is all you need, I like Clipper organic. A supplement is not necessary.

On Taste: Give It Time

I want to be honest here: not everyone falls in love with green tea immediately. It has a particular flavour grassy, slightly astringent and if you’re coming from strong black tea with sugar, or coffee, it can feel like a strange adjustment at first.

But I’ve seen it happen again and again in clinic: clients who start out ambivalent become, within a few weeks, devoted. The palate adjusts. It is not unlike giving up sugar in tea, at first, it tastes flat and unsatisfying. Then one day, the sweetened version tastes excessive and you wonder how you ever drank it that way. Green tea works in a similar way. You start noticing its subtlety. You start to enjoy it.

Most of my clients who try it for a few weeks end up genuinely looking forward to it.

The Quiet Ones Are Often the Most Powerful

After 25 years inside the beauty industry, I have learned to be sceptical of anything promising dramatic transformation. The ingredients I trust most are the ones that have earned their place slowly, through accumulated evidence and consistent results in practice.

Green tea is one of those. Not because it is glamorous, but because it addresses several of acne’s key drivers at once.

Put the kettle on. Cover it with a saucer. Let it brew. That is a good place to start.

References & Further Reading

Kim S, Park TH, Kim WI, Park S, Kim JH, Cho MK. The effects of green tea on acne vulgaris: A systematic review and meta-analysis of randomized clinical trials. Phytotherapy Research. 2021;35(1):374–383.

Yoon JY, Kwon HH, Min SU, Thiboutot DM, Suh DH. Epigallocatechin-3-gallate improves acne in humans by modulating intracellular molecular targets and inhibiting P. acnes. Journal of Investigative Dermatology. 2013;133(2):429–440.

Saric S, Notay M, Sivamani RK. Green tea and other tea polyphenols: Effects on sebum production and acne vulgaris. Antioxidants. 2017;6(1):2.

Daisy Brooks