SLU-PP-332 user experiences: what users themselves report
Users’ own accounts, not research. The accounts are self-selected and prove neither that it works nor that it is safe.
This page does not list users’ doses or sellers, and no figure on it is a recommendation. Doses used in studies, with sources: SLU-PP-332 dosage in studies.
In short
Of 72 people, 45 (63%) said SLU-PP-332 brought some benefit and 40 (56%) some harm.
- An AI model read and classified 300 public Reddit posts one by one, following written instructions. Leaving out posts that looked like marketing, 83 were first-hand accounts, from 72 different people.
- Benefits mentioned most often: fat or weight loss (19, 26%), more energy or alertness (16, 22%) and endurance or exercise performance (14, 19%).
- Harms mentioned most often: fatigue (13, 18%), feeling hot or sweating (11, 15%) and palpitations, heart rate or blood pressure (10, 14%). In addition, 22 (31%) described some other, rarer harm. People tend to post when something goes wrong, so this share does not tell how common harms are.
- SLU-PP-332 has not been given to humans in studies, so the accounts are about products bought online whose contents are unknown. Of those who stated the route, 29 took it by mouth and 4 injected it, although researchers say the substance is not absorbed by mouth. 27 of 72 people (38%) used other substances at the same time, most often retatrutide (16), 5-Amino-1MQ (5), BPC-157 (5), MOTS-c (5), TB-500 (5) and one more equally common.
- The accounts cannot separate the substance from placebo or other causes. What the research shows: SLU-PP-332: what the research shows.
Where the accounts come from and how we read them
Sources: the Reddit forums r/SLUPP332 (48 accounts), r/Biohackers (17), r/Peptides (12), r/SLU_PP_332 (3), r/Nootropics (2) and r/Retatrutide (1), 1 Nov 2024 to 29 Sep 2026. The posts were retrieved from a public Reddit archive. From first-person posts about SLU-PP-332, 300 were picked at random, and every one was read.
Coding: for each account we recorded the route, reported benefits and harms, how strong a harm was, whether and why the person stopped, length of use and other substances used at the same time. We kept accounts that reported some effect, some harm, or no effect. Questions and plans were left out. A harm was recorded when the person reported it during use, even if the cause was uncertain. Several posts by one person count as one person. One person can mention several things, so the shares in the tables do not add up to 100.
Check: an AI model read and classified the posts following written instructions. A second, separate AI run classified a random tenth (30 posts) again without seeing the first classification. The main fields matched: 30/30 (100%). 10 posts looked like marketing and are not in the figures.
Whose accounts these are: routes mentioned: by mouth 29, injection 4; the others did not say. The figures describe the writers and are not a recommendation. The products were not verified, so we do not know what people actually took.
Did SLU-PP-332 help? The overall picture
Of 72 people, 25 (35%) reported benefit only, 20 (28%) both benefit and harm, 20 (28%) harm only and 7 (10%) neither.
Stopping. 6 people (8%) said they stopped or paused: 4 because of harms and 2 because they noticed no effect or for another reason.
| Overall picture: benefit, harm or neither | People | Share |
|---|---|---|
| Benefit only | 25 | 35% |
| Both benefit and harm | 20 | 28% |
| Harm only | 20 | 28% |
| Neither benefit nor harm | 7 | 10% |
Most common reported benefits
Of 72 people. 45 (63%) mentioned some benefit; the table lists every benefit reported.
| Reported | People | Share |
|---|---|---|
| Fat or weight loss | 19 | 26% |
| More energy or alertness | 16 | 22% |
| Endurance or exercise performance | 14 | 19% |
| Better mood | 2 | 3% |
| Recovery | 1 | 1% |
| Other benefit | 14 | 19% |
Share = people / 72.
Most common reported harms
Of 72 people. 40 (56%) mentioned some harm; 7 said explicitly they had none.
| Reported | People | Share |
|---|---|---|
| Fatigue | 13 | 18% |
| Feeling hot or sweating | 11 | 15% |
| Palpitations, heart rate or blood pressure | 10 | 14% |
| Anxiety or restlessness | 5 | 7% |
| Insomnia | 3 | 4% |
| Nausea or stomach upset | 2 | 3% |
| Headache | 1 | 1% |
| Injection site pain or reaction | 1 | 1% |
| Muscle pain or cramps | 1 | 1% |
| Other, rarer harm | 22 | 31% |
Share = people / 72.
How severe were the harms?
Of the 40 people who described how strong a harm was, 24 (60%) described it as mild, 14 (35%) as clearly bothersome and 2 (5%) as severe. The strength is the writer's own description, not a doctor's assessment.
| Strength of the harm as the writer described it | People | Share |
|---|---|---|
| Mild: minor and manageable | 24 | 60% |
| Clearly bothersome: several days, sleep or work affected | 14 | 35% |
| Severe: emergency visit, hospital or unable to function | 2 | 5% |
Harms known from research and regulators: What are the side effects of SLU-PP-332?
How long did people use SLU-PP-332?
35 of 72 people (49%) said how long they had been using it at the time of writing. Where one person wrote several posts, the longest stated time counts.
| Stated length of use | People | Share |
|---|---|---|
| Under a week | 14 | 40% |
| 1-4 weeks | 12 | 34% |
| 1-3 months | 9 | 26% |
| Over 3 months | 0 | 0% |
Many people post partway through, often in the first days or as soon as harms start, so short times are over-represented. The numbers describe the writers; they do not say how long it should be used.
Other substances at the same time
27 of 72 people (38%) used other substances at the same time. The most common: retatrutide (16), 5-Amino-1MQ (5), BPC-157 (5), MOTS-c (5), TB-500 (5) and one more equally common. Then the account cannot tell which substance had the effect.
Taken by mouth, though researchers say it is not absorbed
Most of those who stated the route (29 of 33) took SLU-PP-332 by mouth, for example as capsules, tablets or a liquid. In the mouse studies it was injected, because according to the researchers it is not absorbed by mouth: SLU-PP-332: what the research shows. Effects reported from a product taken by mouth may therefore come from other substances used at the same time, from placebo or from what the product really contained.
The sample also had trial stories that looked like marketing, with a seller's product named again and again. 10 such accounts were left out of the figures. 48 of 83 accounts came from the substance's own forum r/SLUPP332.
About dosing
We do not repeat the amounts or ways of use people mention, and we give no dosing or how-to instructions. A safe dose is not known. Doses used in studies, with sources: SLU-PP-332 dosage in studies. Legal status: Is SLU-PP-332 legal in Finland?
What can be concluded?
Fat loss, energy and endurance were the most common reported benefits, and fatigue, feeling hot or sweating, and heart rate or blood pressure the most common harms. The substance has not been studied in humans, researchers say it is not absorbed by mouth, and many used a weight-loss drug at the same time, so the fat loss cannot be attributed to SLU-PP-332.
The accounts prove neither that it works nor that it is safe. The writers are self-selected, the product contents are unknown, many used several substances at once, and placebo effects can be large. The research and its evidence levels: SLU-PP-332: what the research shows.
Quotes
Short excerpts in the writers’ own words. Writers’ names and links are not shown. We picked quotes from every group: benefit, both benefit and harm, no effect, harms and people who stopped.
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"Seeing killer fat loss already in a couple weeks, plus that metabolic kick from ramped up fat burning. No real stimulant feeling or anything."
r/SLUPP332, 2026-03, SLU-PP-332 for a couple of weeks, route not stated. The writer reports clear fat loss and a livelier metabolism without any stimulant feeling.
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"One thing I have noticed is a pretty good increase in endurance during lifts and cardio."
r/SLUPP332, 2025-02, SLU-PP-332 for about a week, route not stated. Little change in metabolism yet, but endurance clearly improved both in the gym and in cardio.
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"I definitely feel it working I definitely have more cuts in my legs and ive been sweating up a storm in the gym."
r/SLUPP332, 2025-07, SLU-PP-332, route and length of use not stated. The writer feels it working: leg muscles look more defined, and sweating in the gym has increased a lot, which the writer takes as a sign that it works.
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"I don’t feel anything from it, really. Not sure if I’m just wasting money."
r/Biohackers, 2025-10, SLU-PP-332 as tablets, length of use not stated. The writer has finished another jar without feeling any effect and wonders whether it is worth continuing.
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"I’m so tired I could take a nap as soon as I hit the couch."
r/SLU_PP_332, 2025-10, SLU-PP-332, route and length of use not stated. The writer gets so tired they want to lie down and links the tiredness to the substance, because without it the tiredness does not appear.
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"felt like I was going to die."
r/Biohackers, 2026-05, SLU-PP-332 for about a month, route not stated. Weight dropped a lot, but the writer felt very unwell and a fitness tracker showed skin temperature and heart rate constantly raised, so they will not use it again.
Other summaries made with the same method: BPC-157 user experiences, Retatrutide user experiences, NAD+ user experiences, MOTS-c user experiences, Tesamorelin user experiences, Cagrilintide user experiences, NMN user experiences and user experiences with collagen and skin peptides.
Content is general information about research, not medical advice. If you have symptoms, contact a healthcare professional.