Swapping one thing in your bathroom makes skincare products go further

As Britons spend big every month on skincare and anti-ageing products, a dermatologist has now revealed a simple bathroom hack could make your products go a lot further. It is estimated the UK spends a staggering £6.5 billion a year on skincare – with each adult forking out around £43 per month on skin products like serums, moisturisers, and face masks. 

Many of us store them neatly on the bathroom shelf for easy access. But according to a leading expert, this seemingly harmless habit could be sabotaging your skincare routine. Plumbworld, a bathroom and kitchen expert, spoke to Dr Helena Watson, a dermatologist with over 15 years of clinical experience, who explained why the bathroom might be the worst place to keep your products.

How does humidity can degrade your skincare? 

Bathrooms are one of the most humid places in the home, especially after hot showers or baths. The constant exposure to steam and temperature fluctuations can cause active ingredients in skincare to break down faster than intended. 

Dr Watson explains: “Many skincare products contain ingredients like retinol, vitamin C, and peptides, which are highly sensitive to heat, light, and moisture. 

“Storing them in a warm, damp environment can reduce their effectiveness long before the expiration date.” 

What happens when products go bad? 

Using degraded or contaminated products isn’t just a waste of money—it can also harm your skin. 

Dr Watson reveals: “When preservatives break down, bacteria or mould can grow inside the product. This may lead to irritation, breakouts, or even infections, especially on sensitive or damaged skin.” 

Even packaging designed to be airtight may not offer full protection when exposed to repeated humidity. 

Skincare products most at risk include: Serums with active ingredients like vitamin C or hyaluronic acid; Retinol creams or prescription topical treatments; Clay masks and natural formulations without strong preservatives and certain organic or handmade beauty products. 

Dr Watson notes: “Even lip balms and sunscreens can lose potency if stored improperly.”

Where you should be storing them instead: 

The best place to store your skincare is somewhere cool, dark, and dry—like a bedroom drawer or cabinet. Some products, like vitamin C serums or eye creams, may benefit from refrigeration. 

Dr Watson goes on: “If a product label says ‘store in a cool place,’ don’t ignore it. It’s not just about comfort; it’s about protecting the ingredients so they can work effectively.” 

A spokesperson from Plumbworld adds: “While your bathroom may feel like the most convenient place to keep skincare, it’s worth reconsidering your storage habits.

“Moving your products to a cooler, drier location helps protect your investment and your skin.”