Just Owning A Fake Cream, Never Using It, Dulled Pain In Lab Trial

Two new pre-registered randomized experiments found that feeling psychologically connected to an inert cream, not applying it, was enough to raise pain thresholds in a cold-water test, pointing to belief and possession as a distinct lever in placebo research.

Merely believing oneself psychologically connected to an inert cream, without ever applying it, raised pain thresholds and lengthened pain tolerance in two preregistered randomized controlled experiments published online August 7, 2026, in the Journal of Pain. The finding, from a team at Lingnan University and Hong Kong Shue Yan University led by Sze Ki Rose Ng and Victoria Wai Lan Yeung, adds a specific cognitive trigger, a felt bond between self and object, to the list of non-drug levers that can move the body's pain response.

In the first experiment, 121 healthy adults were randomly assigned to one of four conditions: possessing a placebo cream while verbal suggestion induced a sense of "self-object connection" to it, possessing the same cream while suggestion induced disconnection, possessing a cream described as pain-irrelevant, or possessing no cream at all. None of the groups applied any cream before a cold-pressor test, in which participants submerge a hand in cold water. Only the induced-connection group showed significantly higher pain threshold, longer tolerance, and a greater likelihood of keeping the hand submerged than all three other groups (p<.05). A second experiment with 66 adults dropped the verbal script and instead measured connectedness directly, using an Implicit Association Test to gauge how automatically each person linked the cream to themselves. Participants who possessed the cream showed a pain threshold of 7.55 seconds on average versus 4.49 seconds for those without it (p<.001), and longer tolerance, 85.3 seconds versus 53.8 seconds (p=.026), tracking with the strength of that implicit self-cream link.

The result extends, rather than overturns, earlier work from the same research group, which reported in 2020 that merely possessing an inert cream, without using it, could already blunt pain in a comparable cold-pressor task. What is new here is the isolation of the mechanism: when researchers actively induced a sense of disconnection from the same owned object, the analgesic effect disappeared, even though participants still physically held the cream. The authors describe their results as "a preliminary cognitive account" of how possession shapes pain, not a demonstrated treatment.

Both experiments used healthy volunteers, brief laboratory-induced pain from cold water, and behavioral measures such as how long a hand stayed submerged rather than clinical pain outcomes. Neither study involved anyone with a chronic pain condition, a real analgesic, or any period of follow-up beyond the single lab session.

The authors call the mechanism a starting point for "low-cost, psychologically grounded interventions" for pain, language that describes a research direction, not a therapy anyone can use today.