March 2026 · updated August 2026 · 8 min read
Skepticism is fair. When someone suggests you talk to other people who are struggling instead of a trained professional, it's reasonable to ask: does that actually work? Or is it just people commiserating without progress?
The short answer is that it works for some things, with one genuinely good trial behind it and a wider literature that is positive but softer than its own summaries suggest. Below is what that evidence does and does not support — including the places where the honest answer is that nobody has measured it properly yet.
Peer support is help provided by someone with lived experience of a similar challenge. In mental health, this means someone who has personally experienced depression supporting someone currently going through it. The key differentiator from professional help is that the support comes from shared experience rather than clinical training.
Peer support takes many forms: one-on-one conversations, group settings, apps like resolv social, NAMI support groups, crisis warm lines, and more. The format varies, but the core mechanism is the same — connection through shared experience.
The clearest evidence comes from a randomized controlled trial published in the BMJ. Seven hundred and one Ontario mothers screened as high-risk for postnatal depression were randomized either to weekly telephone contact from a trained volunteer who had herself recovered from postnatal depression, or to usual care. At twelve weeks, 14% of the peer-support group scored above the depression threshold, against 25% of the control group — a number needed to treat of 8.8. Read our summary of that trial, including the caveats: the difference disappears at 24 weeks because depressed women were referred for treatment for ethical reasons, and the trial found no benefit for loneliness or health-service use.
That last detail is worth sitting with. The best trial we have says peer support moved a depression score and did not move loneliness. Anyone telling you it fixes both is going further than the evidence does.
Beyond that trial, the review literature is broadly positive and consistently vague about effect sizes. A 2020 review in JMIR Mental Health reports better recovery trajectories, reduced hospital admissions and improved quality of life among people receiving peer support, and more engagement with services (Shalaby & Agyapong, 2020). A review in World Psychiatry covering peer support for severe mental illness finds the same direction of effect and is candid that trial quality is uneven (Davidson et al., 2012).
We are not going to dress this up as more settled than it is. “Peer support works” is well supported as a direction. Precise claims — that it matches therapy, that it works equally for anxiety and depression, that digital peer support performs like in-person — are not things the current evidence can carry.
Thinner than for depression, and we would rather say so than pad it. Most of the trial evidence concerns depression, severe mental illness and recovery outcomes. Anxiety-specific peer support has far less randomized evidence behind it, and what exists is mostly small and heterogeneous. The mechanism people propose — that a group setting supplies graded exposure — is plausible and largely untested in this format.
Online support groups show specific promise because they lower the barrier to participation. People with social anxiety who would never attend an in-person group can gradually build comfort in anonymous online settings.
Hearing how someone else coped with the same challenge provides practical strategies in a way that feels authentic rather than prescriptive. "Here's what helped me" lands differently than "research suggests you should try this."
Discovering that others experience the same symptoms, fears, and struggles reduces the shame and self-stigma that worsen mental health conditions. Shame thrives in secrecy. Peer support breaks the secrecy.
Seeing someone who was where you are and is now doing better provides concrete evidence that recovery is possible. This "hope factor" is consistently identified as one of the most powerful elements of peer support.
People who provide support benefit as much as those who receive it. Helping others reinforces your own coping skills, increases self-efficacy, and provides a sense of purpose. This bidirectional benefit is unique to peer support.
Intellectual honesty matters. Peer support is not:
Peer support is most effective for mild to moderate depression and anxiety, loneliness, adjustment difficulties, general emotional distress, and as a complement to professional treatment.
Online peer support platforms like resolv social are expanding access in ways that weren't possible a decade ago. The honest position on digital peer support specifically is that people are already doing it at enormous scale on general social platforms, and the research is still catching up to describe it rather than to measure it (Naslund et al., 2016). We do not have trial evidence that an app reproduces the result the BMJ trial got with trained volunteers on the phone, and we are not going to imply we do.
The advantages of digital peer support are significant: 24/7 availability, anonymity, no geographic limitations, and lower barriers to entry. For people who can't afford therapy, digital peer support is often the most accessible option.
Is peer support effective? For depression, on the evidence of a well-conducted randomised trial, yes — meaningfully, with a number needed to treat under nine. For a range of recovery outcomes in severe mental illness, probably, on review evidence of uneven quality. For anxiety, for loneliness, and for app-delivered peer support specifically, the honest answer is that it is plausible and under-tested. It is not a cure and not a replacement for clinical care where clinical care is indicated.
Download resolv social if that sounds like something you want. It is free, anonymous, and 18+ — and it is peer support, not treatment. How we grade every study on this site is written up here.
if you're in crisis: please reach out to the 988 Suicide & Crisis Lifeline by calling or texting 988. you can also text HOME to 741741 for the Crisis Text Line. you are not alone, and help is available 24/7.