{"id":226621,"date":"2025-09-14T17:09:33","date_gmt":"2025-09-14T17:09:33","guid":{"rendered":"https:\/\/www.europesays.com\/us\/226621\/"},"modified":"2025-09-14T17:09:33","modified_gmt":"2025-09-14T17:09:33","slug":"everyone-has-a-chinese-peptide-dealer-now","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/us\/226621\/","title":{"rendered":"Everyone has a Chinese peptide dealer now"},"content":{"rendered":"

On an August morning, among the marble columns and Tuscan frescoes in the Fairmont Hotel\u2019s Laurel Court restaurant, a back table became an impromptu chemistry class. Lynne Ji, a slim 27-year-old dressed in black athleisure, moved aside a china teapot, unzipped a black business-class airline pouch, and tipped an array of glass vials onto the table. They contained powdered and liquid versions of the peptide retatrutide, a next-generation GLP-1 compound made by pharma giant Eli Lilly, currently in Phase 3 clinical trials<\/a>. It was getting a lot of buzz in her group chats, she said.<\/p>\n

Ji, a retired poker pro who dabbles in crypto, began microdosing retatrutide in February. Within days, she said, her \u201cfood noise\u201d faded, her portions shrank, and her weight dropped from 135 to 115 pounds. \u201cI am exactly vain enough to inject myself to look thinner,\u201d she said. \u201cI played poker for a career, so taking risks doesn\u2019t bother me.\u201d<\/p>\n

Ji\u2019s stash didn\u2019t come from a pharmacy but from a Chinese peptide dealer she\u2019d been connected to on WhatsApp by tech friends. She paid the guy $195 for 10 vials. \u201cThree weeks later, it shows up at your door,\u201d she said.<\/p>\n

\"SeveralA growing number of techies are injecting Chinese peptides for their purported health benefits, from improving libido to fat loss.<\/p>\n

Ji\u2019s approach to DIY dosing is part of a growing Bay Area trend that\u2019s evolving beyond psychedelics and nootropics into needles and peptide stacks. This cohort of mostly tech industry people are injecting research-grade peptides in hopes of a health or performance boost to address everything from fat loss and recovery to focus and libido.\u00a0<\/p>\n

A few years ago, most people didn\u2019t know a peptide from a protein shake. Then came Ozempic<\/a>, which turned GLP-1s (glucagon-like peptides, originally designed to treat diabetes but repurposed for weight loss) into a household name. Serena Williams shills GLP-1s for the telehealth brand Ro<\/a>, and <\/b>SF-based telehealth company Hims & Hers advertises microdosing GLP-1s on Muni buses.\u00a0<\/p>\n

But GLP-1s, which mimic gut hormones to help regulate blood sugar, are only one branch of peptides, which are strings of amino acids that build proteins and act on certain cell types to change functions in the body. You\u2019ll find peptides in luxury<\/a> skincare serums and oral supplements, but doctors consider injection the gold standard for efficacy.\u00a0<\/p>\n

Enthusiasts stock up on peptides like BPC-157 (\u201cbody protection compound\u201d) for tendon and ligament<\/a> healing; GHK-Cu, a copper peptide believed to increase collagen<\/a> and hair growth; Thymosin alpha-1 <\/a>(TA-1) for immune support; Selank to reduce anxiety<\/a>; and Semax, developed for stroke<\/a> recovery, for a brain boost. Some of these health claims are supported by small studies; others by little more than message-board testimonials. Regardless, for some DIY health experimenters, the term \u201cpeptide\u201d has become synonymous with quick fixes and radical life upgrades.<\/p>\n

That DIY culture is colliding with a regulatory crackdown.<\/p>\n

\"TwoSuperpower co-founder Max Marchione prepares a copper peptide injection from China at the company office in San Francisco. <\/p>\n

Starting in 2023, the Food and Drug Administration began steadily restricting access to popular<\/a> peptides, moving several \u2014 including BPC-157, CJC-1295, and ipamorelin, which were formerly available from U.S. compounding pharmacies \u2014 into its \u201cCategory 2 bucket<\/a>,\u201d shorthand for bulk substances that \u201cmay present significant safety risks\u201d like poor immune responses, and shouldn\u2019t be compounded. (Some were removed from that list in 2024.<\/a>)\u00a0<\/p>\n

Robert F. Kennedy Jr., the Health and Human Services secretary, has tweeted complaints about the FDA\u2019s war on peptides<\/a>. But that has not led to any change to regulations or availability.<\/p>\n

Health hackers have turned to the gray market to source their\u00a0 vials from dealers in China, where most peptides are manufactured. These dealers sell vials labeled \u201cnot for human use.\u201d Purchasing this way amounts to a regulatory hack that opens the Chinese supply chain to anyone with a credit card, under the fiction that the drugs are for laboratory use only. Chinese peptide imports from non-FDA registered companies rose 44% from December to January, according to the Partnership for Safe Medicines, a nonprofit watchdog.<\/a><\/p>\n

Representatives for the FDA declined to comment but directed The Standard to the agency\u2019s website<\/a> Concerns with Unapproved GLP-1 Drugs Used for Weight Loss, which warns against purchasing peptides labeled \u201cfor research purposes.\u201d<\/p>\n

\"AAre peptides in the startup fridge the new company perk? | Source: Jason Henry for The Standard<\/p>\n

Despite peptides being one of pop culture\u2019s buzziest words right now \u2013 alongside Labubu and matcha \u2014\u00a0 they\u2019re not a new phenomena. Peptides were discovered in humans in the 1920s, but it wasn\u2019t until breakthrough synthesizing techniques were developed in the 1950s that scientists began studying their use in treating disease.\u00a0<\/p>\n

Thousands have been cataloged, and around 100 peptide-based drugs have made it to market, with 150 in active clinical trials. \u201cPeptides are super important,\u201d said pathology professor Katrin J. Svensson, who runs a metabolic regulation lab<\/a> at Stanford University.\u00a0 \u201cThey often have fewer side effects than other types of drugs.\u201d Since peptides are already present in the body, adding more is considered low risk, she added..<\/p>\n

Research-grade peptides usually arrive as powders that require dilution with bacteriostatic water. But what shows up in the mail is anyone\u2019s guess. \u201cThere is no regulation on the purity,\u201d said Svensson. \u201cIt\u2019s pretty dangerous.\u201d Risks range from accidental overdose due to inconsistent labelling to vomiting and severe dehydration, or even sepsis, \u201cif mixed in unsterile conditions,\u201d she said.<\/p>\n

Even the first step, mixing, can be dicey, Svennsson warned; the math behind the dilution process, referred to as reconstitution, is complex enough to spawn countless online \u201cpeptide calculators.\u201d Eyeballing a vial isn\u2019t enough. \u201cHolding the bottle up to the light doesn\u2019t mean it\u2019s actually dissolved,\u201d she said. \u201cYou need an instrument to determine this.\u201d<\/p>\n

Tim Fitzgerald, who runs the Human Optimization Center<\/a>, a wellness spa in Walnut Creek offering cryotherapy, red-light therapy, and other treatments, began using peptides in 2016 after suffering a herniated disc and autoimmune issues he attributed to \u201cvaccine injuries.\u201d Within weeks, his pain was gone, he claims. He emphasizes lifestyle changes \u2014 \u201cprotein, training, sleep, light \u2014 all of it matters\u201d \u2014 alongside \u201cuse as needed\u201d peptide injections.\u00a0<\/p>\n

\u201cIt\u2019s not a magic bullet,\u201d he said. \u201cSomeone who\u2019s a metabolic dumpster fire isn\u2019t going to get the result just by hopping on a shot.\u201d He has cycled through a few types of peptides; treating a condition called \u201csmall intestine bacterial overgrowth,\u201d (SIBO), a concussion, and muscle healing. Recently, though, he took a break: \u201cI was starting to feel a bit like a human pin cushion.\u201d<\/p>\n

The Peptide bros\"AMarchione holding peptides from China he keeps in a fridge.<\/p>\n

Max Marchione, the baby-faced 25-year-old cofounder of Superpower<\/a>, a telehealth-for-longevity startup based in SoMa, isn\u2019t fazed by the needles.\u00a0<\/p>\n

Before the company moved offices in September, the communal fridge doubled as a pharmacy. Mornings began with a ritual: Marchione lifting his shirt to swab his abs, cofounder Jacob Peters dropping trou to swab his butt, and Shaun Miller, the vice president of medical operations, alternating between hip and backside. (\u201cI didn\u2019t know people injected anywhere else,\u201d said Peters.)<\/p>\n

Marchione started with peptides a few months ago but is already an evangelist. \u201cAll that matters is if I increase performance, even if it introduces a bit of short-term risk,\u201d he reasoned, focusing on improvements in sleep, muscle gain, cognition, and immunity. \u201cIf that improves performance, it justifies it long term.\u201d What hooked him was the contrast with supplements, which he could swallow daily and still feel no shift in energy, focus, or recovery.<\/p>\n

As none of his preferred peptides are approved by the FDA, Marchione buys products labeled \u201cfor research use only.\u201d\u00a0<\/p>\n

\u201cI get them from a Chinese peptide dealer,\u201d he said. He\u2019d prefer to source them domestically. \u201cWhen you make something that people want hard to get, you create a black market,\u201d said Miller. \u201cThe sentiment went from \u2018I have my favorite compounding pharmacy\u2019 to \u2018I have my Chinese peptide dealer.\u2019 If the supply wasn\u2019t restricted, people would still be going the legitimate path.\u201d<\/p>\n

Miller\u2019s $1,000-a-month peptide stack is small change next to Peters\u2019 $5,000 (\u201cIt\u2019s a lot of money, but it\u2019s such a massive ROI,\u201d said Peters.) and Miller\u2019s $2,000. (Biohackers have a nickname for Miller\u2019s four daily injections: the \u201cWolverine Stack.\u201d) Marchione\u2019s stack includes two shots in the morning and one at night, with others on an ad hoc basis.<\/p>\n<\/p>\n

As the hype over peptide efficacy outruns the data, Marchione has become an unexpected source of info for the community. His phone pings at all hours with sourcing and dosing questions from founders and investors. While The Standard watched, he pulled up a photo of a New York friend\u2019s freezer jammed with tiny, color-capped vials. \u201cThat\u2019s probably $100,000 to $250,000 worth of peptides,\u201d he said. \u201cMaybe more, in retail value. You gotta get on the peptide train.\u201d<\/p>\n

Hence the emergence of Superpower\u2019s Peptide Friday. In June, the company began doling out syringes alongside coffee at its weekly all-hands breakfast for the 20 to 30 employees who work in the office. The lineup has included thymosin alpha-1 (often dubbed by fans as an \u201cimmune booster\u201d) and NAD, a coenzyme known for supporting cellular repair. \u201cIt started as a joke,\u201d said Marchione. But the company\u2019s roughly 150 employees are into the free peptide shots, said VP of operations Adam Small, noting that it\u2019s a good way to get more folks to come into the office to work.\u00a0<\/p>\n

Many purchasers of gray-market Chinese peptides have complained about the wildly varying quality. This infuriated Michael Carter, the San Francisco-based founder of Play.co<\/a>, a mobile gaming startup. After he re-injured his back in 2024, friends suggested peptides. He felt a lot better but hated buying from a sketchy website. \u201cI don\u2019t want to inject some crazy thing,\u201d he said. \u201cYou\u2019re opting out of the FDA, but you don\u2019t want to opt out of supply chain safety.\u201d\u00a0<\/p>\n

In March, he launched Finnrick,<\/a> a peptide-testing platform backed by AngelList founder Naval Ravikant; Cameron Teitelman of StartX, Stanford University\u2019s innovation accelerator; and Walter Kortschak, a venture capitalist and early investor in Lyft, Robinhood, and Palantir. \u201cI made the investment in the belief this is a rapidly growing market,\u201d said Kortschak. \u201cHaving more transparency [provides] great benefits to everyone.\u201d Consumers mail in their vials, and the samples get sent to labs for free testing (similar labs charge fees)<\/a> of purity, quantity, and potency. Finnrick also buys batches itself, taking steps to conceal its identity from the sellers. For each sample, the verdict comes back \u2014 a grade of A through E, with A the best \u2014 and is published online. Paid subscribers get extra analysis.<\/p>\n

Finnrick has tested 2,378 samples (with another 1,500 in the queue) of 15 types of peptides from 122 vendors. The lab found zero semaglutide in five of the six vials tested from one vendor, and the sixth had 5% extra product, which could lead to accidental overdosing (earning that company an E grade).<\/p>\n<\/p>\n

\u201cWe get emails from vendors demanding we take the data down,\u201d said Carter. He doesn\u2019t. The project doesn\u2019t make unapproved drugs safe, but it makes the risk more legible. \u201cEveryone has a peptide guy,\u201d he said. \u201cWhat people need is transparent information so they can make their own decisions.\u201d<\/p>\n

\"A<\/p>\n

Not everyone is sourcing their peptides themselves. Some concierge doctors offer non-FDA-approved peptides via overseas channels, domestic \u201cresearch use only\u201d sellers, or via the small number of compounding pharmacies allowed to serve licensed clinicians.<\/p>\n

\u201cI\u2019m only as good as my compounder,\u201d said Dr. Bronwyn Holmes, a San Francisco specialist\u00a0 in anti-aging and pediatrics who sits on the medical advisory board at Eden Health, a telehealth platform. Holmes has prescribed peptides since 2018, often BPC-157 and thymosin for women recovering from cosmetic surgery and GLP-1s for weight loss. Around 20% of her weight-loss patients are on retatrutide, the investigational peptide. \u201cI see an uptick in, \u2018Hey, I saw this on a podcast. What do you think?\u2019\u201d she said.<\/p>\n

Dr. Molly Maloof<\/a>, a Bay Area physician who has lectured at Stanford University and specializes in treating tech executives, is all in on mainstreaming peptides. \u201cI\u2019m bullish, because I believe peptides are medicine for health and not just disease,\u201d she said. \u201cWe\u2019re going to see a lot of the gray market become the white market in the next decade.\u201d<\/p>\n

Maloof has a proactive approach to peptides: \u201cI don\u2019t recommend anything to patients I haven\u2019t tested myself,\u201d she said, describing four daily injections. The standout has been Selank, an anti-anxiety peptide,<\/a> designed to calm the nervous system without sedation while potentially boosting focus and memory.\u00a0\u00a0<\/p>\n

\u201cMy god. You definitely notice a major shift \u2014\u00a0your brain just feels smooth,\u201d she said. \u201cIt\u2019s so nice.\u201d To source quality peptides, Maloof visits labs, verifies supply chains, and pushes chemists for proof via batch numbers, test methods, and results.<\/p>\n

But Maloof and Holmes are concierge doctors with concierge pricing. For people without sufficient money or connections, the fallback is usually a sketchy website they heard about on a podcast. A thirtysomething San Francisco-based engineer told me they flew to Mexico for injections \u201cfrom a witch.\u201d Another sourced a dealer via Telegram.<\/p>\n<\/p>\n

Ji, the retired poker player, doesn\u2019t pretend peptides are risk-free. \u201cI\u2019m almost certain this is not a miracle drug that has zero long-term damage,\u201d she said of microdosed retatrutide. She has also tried semaglutide and BPC-157. She worries friends are taking unnecessarily high doses. But for the most part, the curiosity outpaces the concern.<\/p>\n

\u201cUnder 20% of my friends do it,\u201d she said. A higher number have pulled the trigger on peptide purchases, but not on the syringe. \u201cThey mentally put it on hold. They don\u2019t really care, as they\u2019re in pretty good shape. But they\u2019re curious, so\u2026\u201d\u00a0<\/p>\n

So now they have a peptide guy, too.<\/p>\n