Clinical Studies: Who Paid? Brand-Funded Research and What It's Worth

‘Clinically proven.’ ‘Dermatologist tested.’ ‘93% of users saw visible improvement.’ These claims sound authoritative. They imply scientific validation. But before you trust them, there’s one question worth asking: who funded the study?

The Funding Problem

Most clinical studies cited in skincare marketing are funded by the brands selling the products. This isn’t hidden — it’s standard practice. But it creates an inherent conflict of interest that rarely gets discussed.

When a company pays for research on its own product, several things tend to happen. The study is designed to show the product in the best possible light. Outcome measures are chosen carefully. Timeframes are selected to maximise positive results. And if the results aren’t favourable, the study often simply doesn’t get published.

This is called publication bias, and it’s a documented phenomenon across industries. Positive results get published. Negative results disappear into file drawers. The available literature ends up skewed toward whatever the funder wanted to show.

None of this means brand-funded research is automatically fraudulent. But it does mean the deck is stacked from the start.

The Study Design Game

You can make almost any product look good if you control the study design. Here’s how it works in practice.

Small sample sizes make it easier to find statistically significant results that might disappear in larger populations. A study of 25 people can show impressive improvements that wouldn’t replicate across 500 people.

Short timeframes can capture initial effects while avoiding long-term questions — see the arbitrary four-week window that’s become the industry’s default study length. A moisturiser that shows improvement after one week of use might not show any advantage over cheaper alternatives at six months.

Self-reported outcomes are easier to influence than objective measurements. ‘93% of users said their skin felt smoother’ is not the same as ‘93% showed measurable improvement in skin texture.’ One is opinion, easily influenced by expectation and packaging. The other is data.

Lack of control groups makes it impossible to know if the product caused the improvement or if it would have happened anyway. If you give people any skincare routine and measure them after four weeks, most will show some improvement simply from consistent product use and increased attention to their skin.

Comparison to nothing rather than competitors avoids unflattering comparisons. ‘Better than not using the product’ is a low bar.

Reading Between the Claims

When a brand cites clinical evidence, pay attention to the details. If they’ll share them.

How many participants? Anything under 30 should be viewed sceptically. Even 50-100 is on the small side for drawing broad conclusions.

How long did the study run? Four weeks might show acute effects, but meaningful skin improvement — anti-ageing benefits, significant texture changes — typically requires longer observation.

What was measured and how? Objective measurements (trans-epidermal water loss, elasticity readings, standardised photography) are more reliable than self-assessment questionnaires.

Was there a control group? Did participants know which product they were using? Double-blind, placebo-controlled trials are the gold standard. Open-label studies where everyone knows what they’re using are much weaker evidence.

Where was it published? Peer-reviewed journals require studies to meet certain standards. ‘Data on file’ at the brand’s headquarters hasn’t been scrutinised by anyone independent.

The Independent Research Gap

Independent skincare research exists, but it’s rarer than you might expect. Academic researchers studying dermatology tend to focus on disease states and pharmaceutical interventions rather than cosmetic products. The funding isn’t there for studying whether one moisturiser works better than another.

This creates a landscape where most available research on cosmetic products comes from the companies selling them. It’s not a conspiracy — it’s just economics. Brands have financial motivation to study their products. Nobody else does.

The result is that consumers face a choice between brand-funded research with all its limitations, or no research at all. Neither option is ideal.

What’s Worth Trusting

Brand-funded research isn’t worthless. It’s just not the independent validation it’s presented as. Use it as one data point among many, not as proof.

Independent research on specific ingredients can be valuable. If there’s robust academic literature on vitamin C at 15%, and a product contains vitamin C at the concentration that literature actually tested, you can reasonably expect similar effects — regardless of whether that specific product has been studied.

Your own experience matters. If a product works for your skin, it works for your skin. If it doesn’t, no amount of clinical data makes it right for you.

Transparency is a good sign. Brands willing to share full study details, acknowledge limitations, and point to independent research where it exists tend to be more trustworthy than those hiding behind vague ‘clinically proven’ claims.

The next time you see ‘87% showed improvement’, remember to ask: improvement compared to what, measured how, over what period, in how many people, and funded by whom? The answers matter more than the headline number.