Wake up, bestie! Today we’re talking about something we all love. Whether you’re an iced vanilla latte-sipping baddie or a matcha lover, there’s another way you could be adding caffeine to your morning routine.
Caffeine is an alkaloid that has a stimulating action on the central nervous system (CNS) and metabolism (PMS). The widespread use of caffeine is frequently linked to its stimulatory action on the CNS, aka our morning cup giving us that jolt for the day. But is caffeine in cosmetics worth the hype? Research suggests that caffeine may be effective if orally ingested, but perhaps a bit more research is needed to fully understand its topical benefits.
Caffeine is increasingly used in cosmetics due to its high biological activity and ability to penetrate the skin barrier. Many cosmetic products claim that its topical use can treat cellulitis and local fat, dark circles, eye puffiness and tiredness. You might've even seen an ad for The INKEY List Caffeine Eye Serum when you’re staying up too late scrolling through TikTok... ironic!
But, does topical caffeine really work?
Yes. Several studies have investigated the effects of caffeine on eye bags and puffiness, with many demonstrating positive results. Topical formulations containing caffeine have been shown to effectively reduce the appearance of dark circles, under-eye bags, and puffiness when used regularly.
The efficacy of caffeine in reducing periorbital hyperpigmentation (dark circles) when applied topically is supported by scientific evidence.
One study also showed that topical caffeine reduces inflammation by contributing to increased levels of cyclic adenosine monophosphate (cAMP), which are believed to have anti-inflammatory properties.
But more research might be needed…
Caffeine is known for its vasoconstrictive properties, which can help reduce swelling and puffiness around the eyes by constricting blood vessels. It is theorized that caffeine's antioxidant properties may help reduce inflammation and improve circulation in the delicate under-eye area.
BUT, just because it has these properties and can penetrate the skin, can applying topical caffeine reap all its claimed benefits? One study suggests that topical caffeine benefits are often overstated in product claims. Despite scientific evidence suggesting orally-ingested caffeine having antioxidant, anti-inflammatory, and lipolytic properties, many products emphasize its systemic effects rather than its topical benefits. The study highlights a gap between marketing claims and scientific evidence, calling for further research to better understand caffeine's topical activities and its actual impact on skin and hair health.
Another study suggests that the efficacy and penetration of caffeine through the skin can be influenced by various factors, including the method of application and the condition of the skin (skin preparation, skin contraction, density and type of hair follicles).
It's essential to note that individual responses to skincare ingredients can vary, and results may not be immediate or dramatic for everyone. Consistent use of skincare products containing caffeine, along with proper skincare practices and lifestyle habits, can contribute to reducing the appearance of eye bags over time. Let’s build those Healthy Hottie habits!
Thanks a latte for reading!
XO,
BiotechBeauty
