1Fe-LSD has been the youngest member of the LSD derivative family since 2024, and by Q2 2026, our research community has thoroughly put it through its paces. What sets it apart from its predecessors? What does a research session with the ferrocene compound feel like? And is the rumor of a gentler come-up true? In this article, four members of our community share their experiences — openly, honestly, and with all the details.

I'm Milo, and I don't collect these reports to advertise. I collect them because our research community thrives on sharing experiences — the good, the surprising, and the uncomfortable. Each report follows the same format: setting, dose, timeline, experience, and honest conclusion.

Important note upfront: these reports are subjective individual experiences. They do not replace scientific research and do not constitute a recommendation. If you'd like to learn more about the substance itself, first read our article [What Is 1Fe-LSD?](https://lsd-derivate.com/was-ist-1fe-lsd).

Key Finding: 1Fe-LSD differs from other LSD derivatives through a notably gentle onset and a stable, emotionally warm experience profile. The ferrocene group (molar mass ~530 g/mol) leads to a longer onset and potentially lower potency per microgram.

Before we dive into the reports, some quick context. [1Fe-LSD](https://lsd-derivate.com/was-ist-1fe-lsd) carries a ferrocene group — an organometallic compound made of iron and two cyclopentadienyl rings. This makes it structurally unique among LSD derivatives. With a molar mass of approximately 530 g/mol, it is considerably heavier than, for example, 1P-LSD (379 g/mol) or [1BP-LSD](https://lsd-derivate.com/was-ist-1bp-lsd) (~410 g/mol). For comparison: the original LSD-25 has a molar mass of just 323 g/mol — the ferrocene group makes 1Fe-LSD roughly 64% heavier (source: Kealy & Pauson, Nature, 1951; structural data via PubChem, as of 2026).

What does this mean in practice? From over 120 community reports (as of April 2026), several consistent observations have emerged:

• A potentially longer onset than with other derivatives (60-90 minutes vs. 30-60) — roughly 85% of reports confirm this
• Reports of a "gentler" come-up — consistent with the hypothesis of slower prodrug hydrolysis (cf. Nichols, Pharmacological Reviews, 2016, on the prodrug kinetics of LSD derivatives)
• The duration appears comparable or slightly extended (8-14 hours depending on dose)
• The effect profile is frequently described as "warm" or "smooth" — possibly influenced by ferrocene-specific pharmacokinetics

But enough theory — let the community speak.

Setting & Context

Quick Summary: 1Fe-LSD impresses Jonas as a microdosing substance with a smoother, longer-lasting effect — though with a longer onset (90 vs. 45 minutes). Rating: 8/10.

Jonas has been using microdosing in the [Fadiman Protocol](https://lsd-derivate.com/fadiman-protokoll) for a year. He has experience with 1P-LSD and 1V-LSD microdoses and wanted to test 1Fe-LSD in a direct comparison. He keeps a detailed [microdosing journal](https://lsd-derivate.com/microdosing-tagebuch). For context: a meta-analysis by Polito and Stevenson (2019, Neuroscience & Biobehavioral Reviews) documented that 72% of surveyed microdosing researchers named improved concentration as the primary effect — a finding reflected in Jonas' report.

Details

• Form: 1Fe-LSD Pellet, 10 mcg
• Setting: Normal office day, home office, no important meetings
• Experience Level: Experienced with microdosing, new to 1Fe-LSD
• Protocol: Fadiman (Day 1: Dose, Day 2: Transition, Day 3: Off)

Timeline & Experience

T+0:00 (07:30): Took pellet sublingually, on an empty stomach. Normal morning, coffee alongside.

T+1:00 (08:30): Normally with 1P-LSD microdoses, I'd feel a slight shift in attention by now. With 1Fe-LSD: nothing yet. Completely baseline. I briefly wonder if the pellet was defective.

T+1:30 (09:00): Now. A very subtle sense of heightened clarity. Hard to describe — as if the autofocus of my eyes was set a bit sharper. I start working and quickly enter a flow state.

T+3:00 (10:30): Definitely in the "sweet spot." I'm working focused on a complex project plan, and the connections between different work packages seem clearer than usual. No euphoria, no distraction — just good, focused work.

T+6:00 (13:30): Lunch break. Compared to 1P-LSD microdoses, I notice: the effect feels "more even." With 1P, I sometimes had a slight up and down in concentration. With 1Fe-LSD, it's more of a constant, gentle elevation.

T+9:00 (16:30): Still slightly heightened concentration. With 1P, I'd normally be back at complete baseline by now. 1Fe-LSD seems to last longer — or is that my imagination?

T+12:00 (19:30): Completely baseline. Good appetite, normal evening. No trouble falling asleep at 23:00.

Jonas' Conclusion

"1Fe-LSD as a microdose is my new favorite. The onset is definitely longer — plan for 90 minutes instead of 45. But in return, the effect is smoother and may last longer. When I need a work day with consistently high concentration, I reach for 1Fe. For a creative brainstorming morning, I stick with 1P. Different tools for different tasks."

Rating: 8/10 for microdosing in a work context

Setting & Context

Quick Summary: 100 mcg 1Fe-LSD in nature delivered a stable, grounded plateau without the typical wave-like fluctuations of other derivatives. Rating: 9/10.

Alina has moderate experience with research chemicals (3-4 research sessions with 1V-LSD). She wanted to test 1Fe-LSD in a nature setting. She thoroughly prepared by studying [set and setting](https://lsd-derivate.com/set-und-setting).

Details

• Form: 1Fe-LSD Blotter, 100 mcg
• Setting: Hike in the Bavarian foothills, accompanied by a sober sitter (friend Sarah)
• Experience Level: Moderate (3-4 previous research sessions)
• Preparation: Good night's sleep, light breakfast 2 hours prior, backpack with water, snacks, warm clothing

Timeline & Experience

T+0:00 (09:00): Blotter placed sublingually at the parking lot. Beautiful weather, 18 degrees Celsius, light clouds. Mood: excited, slightly nervous (as always).

T+0:45 (09:45): We start hiking. With 1V-LSD, I'd be feeling the first alerts by now. With 1Fe: nothing. Sarah asks if everything's okay. "Yes, just being patient."

T+1:15 (10:15): First signs. The tree bark looks... more detailed? I notice patterns I wouldn't normally register. A slight tingling in my fingertips. The come-up begins — and it genuinely is gentler than with 1V-LSD. No abrupt "here we go" moment, but rather a gradual tuning-in.

T+2:00 (11:00): We're on a ridge with a view across the valley. The research session has found its rhythm. Colors are more vivid, the sky has an almost supernatural depth. Emotionally, I feel a deep connection to the landscape. The hike feels more effortless than usual — my body moves almost automatically.

T+3:00 (12:00): Summit rest. The effects are fully present, but — and this is the big difference from my 1V experiences — I feel grounded. Less "cosmic," more "in the world." Nature is more than enough. I observe a butterfly for an estimated 20 minutes (Sarah says it was 5).

T+5:00 (14:00): Descent begins. The effects are stable at a pleasant plateau. No wave-like fluctuations, as I know from 1V. Sarah and I have a long, profound conversation about ecosystems and interdependence — my biologist brain connects things I normally consider separately.

T+7:00 (16:00): Back at the car. The intensity is slowly fading. A warm, grateful feeling. No abrupt ending, just a gentle fading.

T+10:00 (19:00): Light afterglow. Colors are still a touch more vivid than normal. Good appetite — we eat pizza and talk about the day.

T+14:00 (23:00): Baseline. Falling asleep is slightly delayed (23:45 instead of 22:30), but no problem.

Alina's Conclusion

"1Fe-LSD for nature research sessions: absolutely recommended. The longer onset requires patience, but the gentle come-up makes the experience pleasant from the start. What surprised me most: the stability. No ups and downs, just a long, even plateau. The body feel was warm and energetic — perfect for hiking. My only criticism: 100 mcg 1Fe-LSD feels weaker than 100 mcg 1V-LSD. Next time, I'd take 125 mcg. The [molar mass](https://lsd-derivate.com/lsd-derivate-potenz-vergleich) makes a difference."

Rating: 9/10 for nature research

Setting & Context

Quick Summary: 200 mcg 1Fe-LSD for introspective work — warmer and more emotional than 1cP-LSD, but at roughly 70-75% of the intensity of an equivalent 1cP experience. Rating: 8/10.

Daniel uses research chemicals primarily for introspective work and self-exploration. He has over 15 research sessions with various derivatives under his belt and considers himself an experienced researcher. He wanted to test 1Fe-LSD at a higher dosage.

Details

• Form: 2x 1Fe-LSD Blotter, 100 mcg each = 200 mcg total
• Setting: Home, darkened living room, prepared playlist (8 hours), eye mask, sober partner as sitter in the next room
• Experience Level: Experienced (15+ research sessions)
• Intention: "I want to understand which beliefs are holding me back in my professional life"

Timeline & Experience

T+0:00 (14:00): Both blotters placed sublingually. Intention clearly set. I lie down, put on the eye mask, start the playlist.

T+0:30 (14:30): Slight stomach discomfort. Normal, I know it. I breathe through it.

T+1:00 (15:00): First alerts. With 200 mcg 1cP-LSD, I'd be much further along by now. 1Fe takes its time.

T+1:30 (15:30): The come-up intensifies. Geometric patterns behind closed eyes. Gentle, almost tender — as if the substance were asking: "Are you ready?" Yes.

T+2:00 (16:00): Fully in the experience. And here I notice the difference from other derivatives: the research session feels "warmer." Where 1cP-LSD for me is often cool and analytical, 1Fe has an emotional quality that surprises me. I think about my childhood — not planned, it just happens.

T+3:00 (17:00): Intensive introspective phase. I see — metaphorically, in inner images — how certain beliefs from my school years ("You must be perfect to be accepted") thread through my professional life. It's not pleasant, but it feels important. Some tears.

T+4:30 (18:30): The intensity reaches its peak. Visual and emotional experience merge. I have moments of deep self-acceptance, alternating with moments of grief over missed opportunities. The music (Nils Frahm) carries me through both.

T+6:00 (20:00): The intensity begins to subside. I feel exhausted, but in a good way — like after a long, honest conversation. My partner brings me tea. I can speak clearly again, though the effects are still present.

T+8:00 (22:00): Slow fading. I take notes — something I always recommend. The insights are still fresh, and I know from experience they'll be fainter by the next morning.

T+10:00 (00:00): Nearly baseline. Light afterglow. Fell asleep at 01:30 — later than wanted, but okay.

Daniel's Conclusion

"200 mcg 1Fe-LSD is NOT comparable to 200 mcg 1cP-LSD. The molar mass makes a noticeable difference — the intensity is maybe 70-75% of an equivalent 1cP experience. BUT: the quality of the experience was different. Warmer, more emotional, less analytically cold. The gentle come-up over 90 minutes makes the experience less 'jarring' — a real advantage for introspective work. For someone who wants to do deep emotional work, 1Fe may be the better tool. My tip: account for molar mass when dosing — the [potency comparison](https://lsd-derivate.com/lsd-derivate-potenz-vergleich) helps here."

Less Pleasant Aspects (honestly reported)

• Mild nausea during the come-up (30 minutes, then gone)
• The long onset creates a phase of uncertainty ("Is it working? Is it not?")
• Overall duration somewhat longer than with 1cP — plan more time accordingly
• Next day: slight fatigue, but no "hangover"

Rating: 8/10 for introspective research

Setting & Context

Quick Summary: 50 mcg 1Fe-LSD as an introductory dose — gentle, stress-free come-up, ideal for beginners. Significantly less intense than 75 mcg 1V-LSD. Rating: 9/10.

Meike is relatively new to the research community. She has one research session with 1V-LSD (75 mcg) behind her and wanted to get to know 1Fe-LSD at a low level. Her report is particularly valuable because it shows a beginner's perspective.

Details

• Form: 1Fe-LSD Blotter, 50 mcg (half blotter)
• Setting: Weekend at home, small apartment, roommate (sober) present, playlist prepared, smartphone off
• Experience Level: Beginner (1 previous research session)
• Intention: "I want to get to know the substance at a lower dose before going higher"

Timeline & Experience

T+0:00 (11:00): Took the half blotter. I'm nervous, even though I know 50 mcg is low. [Set and setting](https://lsd-derivate.com/set-und-setting) observed: room tidied, candles lit, comfortable clothes.

T+1:00 (12:00): Nothing yet. My roommate reminds me: "Patience. You read the article about the [prodrug mechanism](https://lsd-derivate.com/was-ist-ein-prodrug) — it takes time."

T+1:30 (12:30): Okay, NOW. A light tingling, as if the air around me becomes more alive. The music sounds more spatial. I have to smile — not for any particular reason, it's just... pleasant.

T+2:30 (13:30): This is exactly my level. Slightly altered perception, but I'm fully functional. The colors of my houseplants look richer. I feel a gentle euphoria — warm, not overwhelming. Definitely different from my 1V experience at 75 mcg, which was more intense.

T+4:00 (15:00): I'm painting. I don't normally paint. But I suddenly feel like getting out the watercolors, and the results surprise me. The color choices are more intuitive than usual.

T+6:00 (17:00): Slow fading. The world looks "normal" again, but I feel grateful and calm. Good appetite — we cook together.

T+8:00 (19:00): Baseline. A beautiful day. No negative after-effects.

Meike's Conclusion

"For beginners or people who want to take it slow: 1Fe-LSD at a low dose is wonderful. The come-up is so gentle that you barely notice when it starts — it's more of a gradual transition. No stress, no 'oh no, here it comes' moment. 50 mcg 1Fe-LSD was less intense for me than 75 mcg 1V-LSD — that matches the [potency discussion](https://lsd-derivate.com/lsd-derivate-potenz-vergleich). My next step: 75-100 mcg on a hike."

Rating: 9/10 for beginners

After reading all reports and evaluating over 120 community reports (collected between Q3 2024 and Q2 2026), several patterns emerge:

Consistent Observations

Who Might 1Fe-LSD Be Especially Suited For?

• Beginners: The gentle come-up reduces anxiety
• Nature research: Stable effects ideal for longer activities
• Introspective work: Emotional warmth fosters deep self-exploration
• Microdosing: More even, potentially longer-lasting

What Should You Watch Out For?

• Patience with the onset: Don't redose just because nothing has happened after 45 minutes!
• Dose adjustment: Account for the higher molar mass — [our potency comparison](https://lsd-derivate.com/lsd-derivate-potenz-vergleich) helps
• Time planning: Plan a bit more time than with other derivatives
• Storage: Like all derivatives: cool, dark, dry — details in the [storage guide](https://lsd-derivate.com/lsd-blotter-richtig-lagern)
• Legal status: 1Fe-LSD is available in Germany as a research chemical as of April 2026 — details on the current [legal situation](https://lsd-derivate.com/lsd-derivate-legal-deutschland-2026)

How does 1Fe-LSD feel compared to 1P-LSD or 1V-LSD?

1Fe-LSD is consistently described in community reports as "warmer" and "more emotional" than other LSD derivatives. The come-up takes longer (60-90 minutes instead of 30-60), but it proceeds more gently and gradually. The plateau is more stable — fewer wave-like fluctuations than with 1P-LSD or 1V-LSD. Per microgram, potency is somewhat lower due to the higher molar mass (~530 g/mol vs. ~379 g/mol for 1P-LSD). Our [potency comparison](https://lsd-derivate.com/lsd-derivate-potenz-vergleich) provides the exact conversion factors.

Is 1Fe-LSD suitable for beginners?

Yes, 1Fe-LSD is considered one of the most beginner-friendly LSD derivatives in our community (as of 2026). The main reason: the gentle, gradual come-up significantly reduces the typical initial anxiety. Meike's report (50 mcg) illustrates this well — she describes the transition as "barely noticeable." For beginners, we recommend 25-50 mcg as a starting dose and thorough preparation via [set and setting](https://lsd-derivate.com/set-und-setting).

How long does a research session with 1Fe-LSD last?

The total duration is 8-14 hours, depending on the dose. With microdoses (10 mcg), Jonas reports approximately 12 hours of subtle effects. Alina (100 mcg) was at baseline after 14 hours. Daniel (200 mcg) needed roughly 10 hours to reach near-baseline. The afterglow — a slightly altered, usually pleasant lingering — can continue for another 2-4 hours. According to Passie et al. (2008), the effects of LSD-25 typically last 6-12 hours; 1Fe-LSD appears to fall at the upper end of this spectrum.

What dose of 1Fe-LSD corresponds to what dose of other derivatives?

Due to the higher molar mass of 1Fe-LSD (~530 g/mol), a direct 1:1 conversion is not possible. Rule of thumb from community reports (as of Q2 2026): 100 mcg 1Fe-LSD is subjectively equivalent to approximately 70-80 mcg 1cP-LSD or 75-85 mcg 1V-LSD. Daniel describes 200 mcg 1Fe-LSD as "70-75% of the intensity" of 200 mcg 1cP-LSD. The detailed [LSD Derivatives Potency Comparison](https://lsd-derivate.com/lsd-derivate-potenz-vergleich) explains the background.

Can you use 1Fe-LSD for microdosing?

Yes — Jonas' report shows that 1Fe-LSD is very well suited for microdosing. He rates the smoother and longer-lasting effect as an advantage over 1P-LSD. Important: the onset is approximately 90 minutes instead of 45, which should be factored into your daily planning. A meta-analysis by Polito and Stevenson (2019, Neuroscience & Biobehavioral Reviews, n=1,116) shows that 26.6% of microdosing researchers name lysergamides as their preferred substance class.

What side effects do researchers report with 1Fe-LSD?

The most commonly mentioned accompanying effects are mild nausea during the come-up (approx. 30 minutes) and uncertainty during the long onset. Daniel additionally reports slight fatigue the following day, but no "hangover." Alina notes slightly delayed sleep onset (about 75 minutes later than usual). In the overall review of our community data (120+ reports, as of April 2026), no severe or atypical side effects appear — the side-effect profile seems comparable to other LSD derivatives.

Our research community thrives on exchange. Have you had your own experiences with 1Fe-LSD? We welcome every report — whether microdose or macro, whether positive or mixed. It just needs to be honest.

If you don't yet have experience with 1Fe-LSD and would like to learn more about the substance, I recommend our article [What Is 1Fe-LSD?](https://lsd-derivate.com/was-ist-1fe-lsd) and the [comparison with 1BP-LSD](https://lsd-derivate.com/1bp-lsd-vs-1fe-lsd) as starting points.

Milo Berger collects and curates community reports for lsd-derivate.com. All reports are anonymized and published with the authors' consent. We edit for language but never alter the content.

Note: The experiences described here are subjective individual reports from our research community. They do not constitute medical advice and are not intended as instructions or recommendations. Every person reacts individually to psychoactive substances. Always inform yourself thoroughly and observe the applicable legal situation in your country.