1S-LSD NpSG explained: Legality, effects & risks 2025

Introduction: Why 1S-LSD NpSG is currently on everyone's mind

There are moments when you realize: A topic is circulating through the scene, through Instagram stories, through conversations in shared apartments – and suddenly everyone is talking about it. That's exactly what's happening right now with 1S-LSD NpSG .

If you're 18-25, used to a bit of weed, and maybe even tried MDMA at a rave, you'll keep stumbling across keywords like "1S", "silicon LSD", or "legal trip" in forums or on TikTok. It sounds like sci-fi – and at the same time like a kind of magic word: acid, but legal .

But what does it really mean? What's behind this crypto slang? Is it a clever invention by chemists who are simply outsmarting the law? Is it safe? Or is it the next flop that will be banned in two months and only bring you trouble?

That's precisely why these two words almost always appear together: 1S-LSD and NpSG . One is the substance, the other the law that attempts to regulate such substances. In this article, we'll explain both: in depth, honestly, and casually – so that YOU understand why this topic is currently generating so much discussion.

Key Takeaways

• 1S-LSD is a chemical derivative of LSD that, due to minimal structural changes (silicon atom), is currently not subject to the German Narcotics Act (BtMG) or the New Psychoactive Substances Act (NpSG).
• Effects : Users report that it has an effect almost identical to LSD – visual hallucinations, altered perception of time, intense emotional states.
• Legal situation : As of autumn 2025, 1S-LSD is (still) legal in Germany, but a ban through inclusion in the NpSG is expected in the near future.
• Risks : Psychological stress (bad trips, anxiety, paranoia), physical side effects (rapid heartbeat, dizziness), plus unknown long-term consequences due to lack of research.
• Consumption : Mostly as blotters, pellets, or drops. Dosage should be cautious (10–20 µg microdose, 50–150 µg full trip).
• Happyflower.io offers you legal, tested alternatives (CBD, Edibles, Vapes) – for everyone who wants to consume consciously and without a legal gray area.

1. What is 1S-LSD and what does NpSG mean?

Why do people talk about "legal LSD"?

Imagine LSD – that legendary acid that has shaped pop culture since the 60s. Colorful trips, psychedelic patterns, music that feels like a living organism. The whole thing is strictly forbidden in Germany – it's right there in the Narcotics Act.

This is where 1S-LSD comes in. Chemists have minimally altered the structure of LSD: by adding a small silicon atom. It sounds like a minor change, but it makes a huge difference. Because suddenly the molecule is no longer exactly LSD – and therefore is not subject to the German Narcotics Act (BtMG ).

The result:

• same effect (according to everything users report)
• same trip, same duration
• However: not legally covered, because formally it is a new molecule.

Hence the nickname: "legal LSD" .

What's behind the silicon trick?

LSD is a lysergamide, and previous derivatives such as 1P-LSD or 1cP-LSD have mostly only changed at small molecular ends. The problem: The New Psychoactive Substances Act (NpSG) now prohibits many such variants outright.

But 1S-LSD takes a different approach: Instead of simply modifying the nitrogen, it attaches a silicon atom. This wasn't provided for in the previous legal definition. Silicon is a rather unusual building block for psychedelics in chemistry – but it's sufficient to legally exempt the molecule from scrutiny .

For consumers, this means that 1S-LSD is likely converted into regular LSD in the body . At least, that's the prevailing assumption in toxicology. In other words, you're technically taking 1S-LSD – but your body is converting it into the classic drug.

NpSG: How the law against "legal highs" works

This is where the NpSG comes into play: the New Psychoactive Substances Act . Since 2016, it has been the state's answer to the "legal high" wave.

It used to be like this: Chemists would develop a new molecule that had effects similar to a banned drug, but wasn't on the list. The government then had to amend a law before it was prohibited. That took months – plenty of time to make millions.

That changed with the NpSG:

• Instead of banning individual substances, entire groups of molecules are targeted at once.
• Example: "All lysergamides with structure XYZ are prohibited."
• This means that future versions will also fall directly under the law – at least theoretically.

But: Chemists are clever. They deliberately look for loopholes in the definition. And that's exactly where 1S-LSD falls into.

2. How does 1S-LSD compare to classic LSD?

What do users report about the effect?

Ask ten people about their 1S-LSD experience, and nine will tell you: "That's LSD."

Based on current knowledge, the effects are almost identical . No wonder: 1S-LSD is considered a prodrug – meaning your body converts it to LSD after ingestion.

This is what it feels like:

• Visual changes : Colors pulsate, patterns dance across walls, surfaces appear fluid.
• Auditory intensity : Music sounds alive, voices echo, background noises become melodies.
• The sense of time dissolves : minutes stretch, hours pass in seconds.
• Emotional roller coaster : From ecstatic euphoria to deep self-confrontation – depending on set & setting.
• Body sensations : lightness, tingling, sometimes heaviness or dizziness.
• Duration : 8 to 12 hours, with mental "reverberation" until the next day.

A quote from a psychedelics forum sums it up perfectly:

"I took 1S-LSD on a blotter, 150 micrograms. After an hour I was in the middle of the acid feeling. Colors like in a comic book, my playlist sounded like a live concert in my head. For me, zero difference to classic LSD."

Onset, peak and afterglow – the three phases

1S-LSD , like LSD, progresses through three phases :

1. Onset (30–90 minutes)

You'll notice your thoughts flowing faster, your body sensations changing, and your pupils dilating. Some users report that 1S-LSD has a slightly delayed effect – more like 60–90 minutes instead of 30–60. The reason: The body first has to convert it into LSD.

2. Peak (3–6 hours)

The climax. This is where the visual and emotional impact is greatest. Everything feels intense: the music, the conversations, the movements. Many describe it as a "magical tunnel" where reality softens.

3. Afterglow (3–6 hours)

The visual effects fade, replaced by reflection, contemplation, and sometimes fatigue. Some feel clear-headed and inspired, others rather lethargic. Sleep is often only possible many hours later.

Microdosing with 1S-LSD – does it work?

Of course, the scene doesn't just discuss "full trips," but also microdosing. The idea: taking tiny amounts (5–20 µg) to improve mood and focus without experiencing hallucinogenic effects.

A student writes in a report about his experiences:

"I took 15 µg of 1S-LSD on university days for over two weeks. It was like light coffee + creative thoughts. No hallucinations, but more flow when writing."

Risks associated with microdosing:

• Dosage is difficult to adjust precisely (pellets & blotters vary).
• The effect can vary from person to person: some feel it clearly, others hardly at all.
• Long-term effects are unknown, as no studies specifically on 1S-LSD exist.

Table: Comparison of 1S-LSD with LSD-25 and other derivatives

substance	Legal situation (DE, 2025)	Duration of effect	Onset	Effect according to the community	Research situation
LSD-25	illegal (BtMG)	8–12 h	30–60 min	intensely visual, deep, emotional	relatively well researched
1P-LSD	prohibited (since 2021)	8–12 h	40–90 min	Similar to LSD, sometimes described as milder	moderate data situation
1V-LSD	prohibited (since 2022)	8–12 h	40–90 min	LSD-like, some say "more physical"	few studies
1D-LSD	prohibited (since 2024)	8–12 h	45–100 min	LSD-like, hardly any differences	almost no studies
1S-LSD	still legal (2025)	8–12 h	60–90 min	practically identical to LSD	barely researched, assumption: prodrug to LSD

Differences in detail: What do consumers report?

• Onset : Some say 1S-LSD takes a little longer to "ignite".
• Clarity : Some perceive 1S-LSD as "slightly clearer" or "less chaotic" than acid – but this is subjective.
• Body sensation : Some report experiencing more pronounced dizziness at the beginning, while others feel no difference.
• Potency : 100 µg 1S-LSD = 100 µg LSD? For many, yes. But some claim that 1S-LSD is slightly weaker if it is not fully converted.

Quote from a Discord group:

"100 micrograms of 1S felt like 80 micrograms of regular LSD to me. It was still great, but I had the feeling that something was 'missing'. But that could also have been my head."

Why effects sometimes feel different

Even if the substances are almost the same, the experience can vary:

• Set & Setting : Are you relaxed or stressed? Are you alone or with friends? Indoors or outdoors?
• Body chemistry : metabolism, weight, diet – all influence how quickly your body converts 1S-LSD into LSD.
• Expectation : Those who know they are taking "legal LSD" might feel safer – or constantly think about the looming threat of prohibition. Both can color the trip.

Community voices (Happyflower style)

Here are a few fictional-realistic examples of how they might appear in forums or chats:

"I tried 1S-LSD at an open-air festival this summer. The sun was setting, the stage was vibrating, I was completely in the moment. It could just as easily have been LSD-25." "It didn't kick in for me until 90 minutes later. I was already thinking: placebo? And then boom – deluxe visuals. I almost took more too soon, good thing I waited." "Microdose on Monday morning: A bit more focus, but also slight restlessness. Nice for university, but I wouldn't do it every day."

3. Is 1S-LSD legal in Germany – and for how much longer?

As of autumn 2025: Where do we stand right now?

If you're wondering whether you're on the safe side with 1S-LSD , the answer is: Yes and no .

• Not covered by the German Narcotics Act (BtMG ): Classic LSD (LSD-25) is clearly illegal and has been on the list of "non-marketable narcotics" for decades. 1S-LSD is not listed there.
• Not yet included in the NpSG : The New Psychoactive Substances Act (NpSG) has banned many LSD derivatives, but 1S-LSD was too new to be considered in the latest versions.
• Conclusion : As of September 2025, possession and acquisition of 1S-LSD are not illegal . Shops can openly sell it, and you can theoretically order it without police involvement.

But – and this is a big BUT: The party doesn't last.

Why a ban is almost certain

Look at the last few years, and you'll see the pattern:

• 2016 : Introduction of the NpSG → Goal: To curb the “Legal High” wave.
• 2021 : Ban on 1cP-LSD . At the time, it was the most popular legal acid substitute, added to the list within a few months.
• 2022 : 1V-LSD was introduced and banned in the same year.
• 2024 : 1D- and 1T-LSD were banned. Shops had to destroy remaining stock.
• 2025 : 1S-LSD appears, this time using a silicon trick. All experts say: It's only a matter of time before this too falls under the NpSG (New Psychoactive Substances Act).

This is not an oracle, but a routine:

• Substance appears → Media report → Demand increases → Politics reacts → Ban in 6–18 months.

For 1S-LSD, this means: a ban probably in 2025. Some insiders are talking about "autumn/winter 2025," so practically in the next few weeks.

How does such a ban work?

To help you understand why it's so fast, here's a quick look at the process:

1. Insight : Authorities (e.g., BfArM) notice that a new substance is circulating.
2. Assessment : A panel of experts examines the impact, risks, and potential for abuse.
3. Decision : The Federal Ministry of Health issues a regulation.
4. Confirmation : The Federal Council usually approves.
5. Publication : The amendment will be published in the Federal Law Gazette.
6. Entry into force : The ban will apply from the following day.

It sounds bureaucratic, but it's surprisingly quick. While changes to the Narcotics Act (BtMG) often take months, the New Psychoactive Substances Act (NpSG) can be amended in just a few weeks.

What does "legal" mean in practice?

Many consumers think: "If it's legal, it's safe." But that's a mistake. With 1S-LSD, "legal" only means: not yet banned .

That means:

• No guarantee of purity or dosage – the products are unregulated.
• No consumer protection – if it's incorrectly labelled, you're out of luck.
• No medical backup – in an emergency, doctors know little about side effects.
• No grandfathering rights – if it's banned tomorrow, you'll be committing a crime from then on.

In other words, "legal" here means more like "a grey area with an expiration date".

What happens if 1S-LSD is banned?

Once the NpSG is amended:

• Sales & Trade : Shops are no longer allowed to list it. Remaining stock will be destroyed. Anyone reselling it is committing a crime.
• Possession : Even small quantities are illegal. Prosecutions for mini-doses are often dropped, but anyone who has stockpiled them risks trouble.
• Import : If you order from abroad after the deadline, you are committing a crime. Packages will be held up in customs.
• Consumption : Consumption itself is not legally prohibited, but possession is. And without possession, there is no consumption.

A classic legal saying: "Not punishable retroactively" – meaning: If you acquired it legally before the ban, you're not automatically liable. But once it comes into effect: Keep your hands off it .

Comparison: BtMG vs. NpSG – what does that mean for you?

criterion	Narcotics Act (e.g., LSD-25)	NpSG (e.g. 1S-LSD after prohibition)
Punish	very high (adhesion possible even with smaller quantities)	milder, focus on trade/production
consumption itself	Possession is not punishable, but it is forbidden.	Possession is not punishable, but it is forbidden.
Procedures for very small quantities	Setting it up is possible, but risky.	Usually hired for personal use
Flexibility Legislator	Bundestag needs → takes	Regulation by Ministry → quickly

For you, this means: If 1S-LSD is banned, the penalties will tend to be milder than for LSD-25 – but still nothing you can casually advertise.

How are shops and the scene reacting?

Shops have long been familiar with the game:

• As soon as a ban is announced, many offer "Last Chance" deals .
• Some people stockpile – consumers are hoarding for months.
• Others are switching directly to alternatives (e.g., legal CBD products, edibles, HHC, etc.).

The scene is divided: Some say "now more than ever", others don't want to suddenly be caught with illegal stuff.

Legal uncertainties: Gray areas in real life

Even though 1S-LSD is legal as of today, there are always gray areas:

• Customs : If you order from abroad, your package may be inspected. Not every customs officer knows immediately whether 1S-LSD is legal. Worst case scenario: your product gets confiscated.
• Police check : If the police find blotter papers on you, they can open a case until it's clear that it was (still) legal. It remains stressful.
• Courts : In some cases, courts rule differently on whether a substance falls under the New Psychoactive Substances Act (NpSG). So nothing is 100% safe.

Societal context: Why the ban is politically motivated

Politicians argue with:

• Protection of youth – “We cannot allow every LSD-like substance to be sold at kiosks.”
• International cooperation – many EU states are following suit with new bans.
• Media attention – as soon as reports about “legal LSD” emerge, the pressure increases.

For you as a consumer, this means: In the long run, the state wins the cat-and-mouse game . There are always loopholes in the short term, but in the long run they will be closed.

Community reactions to the impending ban

"I had just started testing microdosing with 1S. It was really nice for working. Now I hear it's going to be banned – too bad, but it was to be expected." "I find it crazy that I could just order 1S LSD from the shop, while friends get in trouble for a joint. But it certainly won't last long." "I've stockpiled it because I know the ban is coming. But honestly: It already feels unsafe to have it sitting at home."

FAQ: Your most important questions about 1S-LSD NpSG

Is 1S-LSD currently legal in Germany?

Yes – as of autumn 2025, 1S-LSD is still legal in Germany. It is neither listed in the Narcotics Act (BtMG) nor currently included in the New Psychoactive Substances Act (NpSG). BUT: Politicians are already preparing a ban, presumably in 2025. As soon as the amendment is published in the Federal Law Gazette, 1S-LSD will be immediately illegal.

How does 1S-LSD differ from classic LSD?

Chemically minimal: 1S-LSD has a silicon atom attached. This is enough to prevent it from being legally classified as LSD. However, it is very likely converted to LSD in the body. According to the community, the effects, duration, and intensity are almost identical. The difference lies in its legal status . LSD-25 is clearly illegal, while 1S-LSD is not currently.

How exactly does 1S-LSD work?

Almost like acid:

• visual patterns, kaleidoscopes, more intense colors
• Music sounds more alive, the sense of time dissolves.
• Feelings are intensified – both positive and negative.
• Duration: 8–12 hours + afterglow

Some report that the onset is slightly delayed (up to 90 minutes) because the body first has to convert it.

How do you safely dose 1S-LSD?

There is no perfect formula, because every body reacts differently. But roughly speaking:

• Microdose : 10–20 µg – no hallucinations, slight mental clarity
• Low Trip : 50-100 mcg – gentle visuals, introspective
• Full Trip : 150–200 µg – full experience, strong intensity
• High Dose : 300 µg+ – intense, risky, not for beginners

Rule: always start small and wait 60-90 minutes. Many mistakes happen because people add more too soon.

What are the risks associated with 1S-LSD?

• Psychological : Panic attacks, anxiety, "bad trips", flashbacks
• Physical : Rapid heartbeat, dizziness, nausea, dilated pupils
• Long-term : no research → unknown consequences possible
• Quality : Risk of incorrect dosages or contamination because no regulation exists.

Just because it's (still) legal doesn't mean it's harmless.

Can 1S-LSD be combined with cannabis?

Many do it – the classic "joint on acid" move. But: cannabis can significantly intensify the trip. What's relaxing for one person can lead to paranoia for another. If you combine them: start slowly, preferably smoke later in the trip.

Does 1S-LSD show up in drug tests?

Currently, this is uncertain. Standard urine tests check for THC, cocaine, amphetamines, and opiates. LSD is often only detected in specialized tests. 1S-LSD could theoretically appear as LSD if it's metabolized in the body. Fact: There's no reliable data . If you need to save your job or driver's license: the risk is high.

What happens if I still have 1S-LSD at home after the ban?

Then it's illegal. Possession of small amounts can theoretically be stopped, but legal proceedings remain. Large amounts = trouble. Some people stockpile it, but that's not safe. As soon as it's in the law, you should n't store it anymore .

Are there legal alternatives if 1S-LSD is prohibited?

Yes. You can find it at Happyflower.io:

• CBD flowers – relaxing, no mental chatter
• Edibles – delicious brownies, gummies with THC alternatives
• Vapes & Hash – smooth, fast, legal

These are not psychedelic trips like acid, but legal ways to relax your mind without legal risk.

Is 1S-LSD the last “legal” LSD variant?

Many experts believe: yes. With 1S-LSD, the chemical possibilities are almost exhausted. Previous developers (e.g., Lizard Labs) have withdrawn. Of course, new variants could emerge – but each time, the possibilities become more limited. Realistically, with the ban on 1S-LSD, the era of "legal acid derivatives" comes to an end.