Studies & Stats | This Works

our studies
We rigorously test our formulations in clinical, fMRI and user studies to ensure they are science-backed and proven to work.

our research

To ensure our products deliver on their promise, our formulations undergo a series of dedicated testing systems. Every product is rigorously tested by the This Works user panel, requiring over 70% approval to launch. Since 2004, we’ve invested in clinical sleep studies, including six independent trials with 900+ participants and fMRI research. Our fragrances, tested using fMRI brain imaging, go beyond sensory pleasure to evoke specific moods, making our Fragrances Functional too.

fMRI brain imaging studies

Functional magnetic resonance imaging (fMRI) maps brain activity by detecting blood flow changes. Our studies inform our fragrance blends by analysing the stimulation to brain regions tied to mood, memory and sleep.

skin clinicals

Our clinical studies ensure the efficacy of our technical skincare and bodycare. These tests assess key benefits, including the products ability to reduce wrinkle depth and length, improve skin elasticity, boost hydration levels, and support a healthy skin barrier.

user studies

Our panel is a rotating group of over 1,000 real people with real lives (rather than bods in lab coats) from across the UK, working with us to ensure that our products really do work. If a product doesn’t hit the mark, then we will fine-tune it (and it will keep coming back) until our panel decides that it does.

sleep studies

At This Works, we use a variety of different scientific methods to measure sleep quality. Self-assessment questionnaires have been used to gather personal insights, actigraphy to track sleep patterns and movements, and polysomnography for a comprehensive analysis of sleep stages. Additionally, electroencephalogram (EEG) monitoring captures brain activity to provide a deeper understanding of how our sleep solutions can support restorative rest.

tests & results

We believe our customers are the ultimate judges—only they can decide if 'This Works.' Our dedicated testing system has been in place since the brand's inception to ensure our products deliver on their promise, every time. In addition to extensive user testing (over 70% must say 'This Works' before launch) our products undergo rigorous testing in scientific studies, including clinical trials and fMRI brain imaging.