r/Biohackers

Biohackers - DIY Biology, Nutrigenomics, and Grinding

Founded November 2012 · Public — anyone can post

Updated Sep 9

Welcome to r/Biohackers. This community is designed for individuals interested in DIY biology, sometimes referred to as biohacking. It focuses on DIY biology, Pharmacology, and Grinding techniques. Members can collaborate, share knowledge, and explore topics such as genetic engineering, experimental pharmacology, life extension, longevity, supplements, nootropics, sleep, fitness, and transhumanism. This space encourages scientific inquiry and experimentation in accessible, hands-on ways.

Members

898,878

899K

Online now

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not captured in the last snapshot

Posts per day

—

no sample yet

Comments per post

—

no sample yet

Growth · 7d

—

not enough history yet

Growth · 30d

+2.2%

+19K members · ≈35d

Published rules

10

3 mention promotion — quoted below

Last post

—

no sample yet

Distinct posters

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no sample yet

Tracking since Aug 5 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.

Member growth

What works in r/Biohackers

Every post in a recent sample, labelled by format. Share is how much of the sample used that format; average score is how it performed.

FormatShare of postsAvg score
Question30%102
Lessons / story25%1,462
News / link19%1,169
Discussion15%1,077
Show & tell7%1,623
Rant4%1,813

Based on 73 posts sampled in September 2026. A sample, not the full history.

Median score
285
Top 10% score
2,134
Text posts
51%
Got no replies
0%
Busiest windows
Sat 16:00 UTC, Sat 17:00 UTC

Posting rules, in plain words

Self-promotion is banned. Promotion goes in peptides/HRT topics as well as adverse events and vendor scam reporting (dedicated megathreads).

  • No Sourcing, Selling, or Promotion: No vendor talk, sourcing help, discount codes, affiliate links, DMs for product, or “where to buy.” External links require a substantive summary.
  • Megathread topics: We have dedicated megathreads for peptides/HRT topics as well as adverse events and vendor scam reporting. These allow us to consolidate these topics and keep the sub clean. Standalone posts will be removed.
  • Evidence, Claims, and N=1: If you claim something “works,” include credible sources or clearly label it as personal experience. No pseudoscience, no certainty beyond the evidence, and label self-experiments as N=1.
  • Stay On Topic & Quality Content: This is a sub for experimental self-optimization and applied bio-science. Keep posts on topic and detailed. The more effort you put into your content, the better responses you will get.

Quoted from the community’s own published rules. Always re-read them before posting.

What a good comment looks like here

  • — Directly answers the question or addresses the post's topic
  • — Shares personal experience (N=1) with specific details (doses, duration, results)
  • — Provides actionable advice or alternative perspectives
  • — Cites scientific literature or explains complex concepts clearly
  • — Engages in critical discussion about claims and evidence

What r/Biohackers's rules say about promotion

3 of 10 published rules mention promotion, advertising or spam. Quoted from the community's own rules page, not summarised.

  1. No Sourcing, Selling, or Promotion

    rule 5 of 10

    No vendor talk, sourcing help, discount codes, affiliate links, DMs for product, or “where to buy.” External links require a substantive summary.
  2. Megathread topics

    rule 9 of 10

    We have dedicated megathreads for peptides/HRT topics as well as adverse events and vendor scam reporting. These allow us to consolidate these topics and keep the sub clean. Standalone posts will be removed.
  3. Legal Disclaimer (Please Read)

    rule 10 of 10

    By viewing this subreddit, you agree that no affiliate, moderator, or member of the r/Biohackers community is responsible for any actions you take as a result of information shared here. All content is for educational purposes only and should not be considered medical advice. Any decisions you make are done solely at your own risk and liability. Always consult a qualified healthcare professional before making changes to your health or using experimental interventions.

The other 7

  • Be Respectful
  • No Direct Medical Advice
  • Evidence, Claims, and N=1
  • Safety and Harm Reduction Required
  • Stay On Topic & Quality Content
  • Minors and Age-Sensitive Content
  • AI Use

Read from r/Biohackers’s published rules on Sep 5. Communities change their rules without notice and enforce requirements (karma, account age, flair) that may live in the sidebar or automod rather than here — the source page is the authority.

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Shared audience

Posters in r/Biohackers also post in…

N
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13% audience overlap20 shared posters
Q
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8.8% audience overlap16 shared posters

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See the full lists on similar subreddits.

r/Biohackers — frequently asked

How many members does r/Biohackers have?

r/Biohackers has 898,878 members as of our most recent crawl on Sep 9. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.

Is r/Biohackers growing?

Over the last ≈35 days r/Biohackers changed by +2.2% — a gain of 19K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".

How active is r/Biohackers?

We don't have a reliable posting-rate sample for r/Biohackers yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the next sample lands.

When was r/Biohackers created?

r/Biohackers was founded in November 2012 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.

Can I promote my product in r/Biohackers?

r/Biohackers publishes 10 rules and 3 of them address promotion. The first, “No Sourcing, Selling, or Promotion”, says: No vendor talk, sourcing help, discount codes, affiliate links, DMs for product, or “where to buy.” External links require a substantive summary. Read the full rule text on this page and the community's rules page before posting — moderator enforcement is the thing that actually decides.

How do I monitor r/Biohackers for mentions?

Hit Watch on this page. Prowlo starts crawling r/Biohackers into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.

Can my AI agent read r/Biohackers's stats?

Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/Biohackers's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.

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r/Biohackers Subreddit Stats — 899K members, +2.2% in 35d