LUCID · LSD-25
← THE COLLECTION
SERIES I

LUCID

LSD-25 · Lysergic Acid Diethylamide · 5μg per drop

Cognitive sharpening. Enhanced focus, pattern recognition, and analytical clarity — the precision microdose for deep work.

PER DROP
5μg
DROPS
200
CHARACTER
Head-centered
DURATION*
8–12hr
$111 THE SCIENCE
DOSISSERIES ILUCIDLSD-25 · 5μg
THE PHARMACOLOGY
How a single drop
moves through you.

LSD is one of the most potent 5-HT2A agonists known. At sub-perceptual doses it nudges the same machinery that drives learning and plasticity — without the full perceptual experience.

5-HT2A
PRIMARY TARGET
Partial agonist
0
RECEPTOR DWELL
Long residence time
BDNF ↑
GROWTH SIGNAL
mTOR / TrkB cascade
0
TOLERANCE RESET
Why protocols cycle

Sublingual uptake

Held under the tongue, the compound absorbs through oral mucosa into the bloodstream and crosses the blood–brain barrier within minutes.

5-HT2A binding

LSD binds serotonin 5-HT2A receptors as a partial agonist (with activity at 5-HT2C, 5-HT1A and dopamine D2). Cryo-EM imaging shows the molecule sits unusually deep in the receptor — a structural "lid" that explains its long, slow action.

Cortical glutamate release

Activation of 5-HT2A on layer-V pyramidal neurons in the prefrontal cortex increases glutamatergic signalling — the opening move of the brain's growth response.

The plasticity cascade

Downstream BDNF → TrkB → mTOR signalling promotes dendritic branching and synapse formation. Classic psychedelics are "psychoplastogens" — they transiently raise the brain's capacity to rewire (Ly & Olson, 2018).

Sub-perceptual by design

At 5–10μg you should not feel "high." The intent is a quiet lift in mood, focus and flexibility — enhanced, not altered. If you can clearly tell you took something, you took too much.

NETWORK FLEXIBILITY

At higher doses LSD loosens the brain's default-mode network and increases cross-network communication. At microdoses these effects are far subtler, but the same flexibility is the proposed basis for shifts in creativity and perspective.

WHAT THE EVIDENCE SAYS

Open-label and survey data on microdosing are broadly positive for mood, focus and creativity. But placebo-controlled trials (e.g. Szigeti 2021; de Wit's lab) suggest a large share of the benefit is expectancy. Treat microdosing as promising and under-studied — not settled science.

THE MOLECULE
LSD-25, precisely.

Lysergic acid diethylamide — the lysergamide first synthesized by Albert Hofmann at Sandoz in 1938. Its tetracyclic ergoline scaffold locks deep into the serotonin 5-HT2A receptor, where an extracellular "lid" slows its release and gives LSD its long, characteristic action.

2D skeletal structure of LSD-25, lysergic acid diethylamide
LYSERGIC ACID DIETHYLAMIDE · SKELETAL STRUCTURE
FORMULAC₂₀H₂₅N₃O
MOLAR MASS323.43 g/mol
CLASSErgoline · lysergamide
IUPAC NAME(6aR,9R)-N,N-diethyl-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide
PRIMARY TARGET5-HT2A receptor · partial agonist
FIRST MADEA. Hofmann · Sandoz · 1938
SELECTED RESEARCH
Read the primary sources.

A representative selection of peer-reviewed work on LSD's pharmacology and microdosing — including the studies that complicate the story.

A curated reading list, not a systematic review. Microdosing evidence in particular remains preliminary and mixed — verify all sources before clinical or commercial use.

DOSING GUIDE
Know your dose.

Start low. Titrate slowly. The microdose range is the first two rows — everything below is reference only.

LUCID
5μg / drop · 200 drops
LEVEL
DROPS
DOSE
EXPERIENCE
MICRO
1–2
5–10μg
Sub-perceptual. Focus, subtle mood lift. The intended range.
THRESHOLD
3–5
15–25μg
Barely noticeable. A faint shift in tone and energy.
LIGHT
5–10
25–50μg
Mild perceptual shifts. No longer sub-perceptual.
MODERATE
10–15
50–75μg
Clearly altered. Not a microdose — set & setting matter.
FULL
15–20
75–100μg
Full experience. Reference only.
⚠ For microdosing, stay in the MICRO range. Higher rows are included for context and safety, not as a recommendation.
DOSE CALCULATOR
LUCID delivers 5µg per calibrated drop. Drag to see the dose — the lit band is the microdose range.
5µg
Microdose
✓ MICRODOSE RANGE
MICRO
0 drops20 drops
1 drops
Estimate based on the labeled concentration, for education only. Start at the lowest dose and titrate slowly — if you can clearly tell you took something, you took too much. Not medical advice.
Protocols worth knowing.

FADIMAN

Day 1 dose · Day 2 transition · Day 3 rest, then repeat. The most common protocol. Off-days let 5-HT2A receptors re-sensitise and help you read effects against a clean baseline.

STAMETS-STYLE

Four days on, three days off — adapted from the psilocybin "stack." Often paired with Lion's Mane and a low dose of niacin (see the stack below).

EVERY-THIRD-DAY

A simple fixed cadence (dose every third day) favoured by the Microdosing Institute. Whichever you choose, cycle 4–8 weeks then take a 2–4 week break to avoid tolerance and habituation.

Delivery methods.
SUBLINGUAL RECOMMENDED
Drops under the tongue, held 60–90 seconds before swallowing. Fastest, most reliable onset.
IN WATER
2–4 oz distilled or spring water. Avoid tap water — chlorine and minerals can degrade LSD. Drink promptly.
IN JUICE
Room-temperature juice masks the ethanol note. Never hot liquids — heat degrades the compound.
TIMING
Dose in the morning. LSD is activating and late dosing can disrupt sleep. A light meal is fine; a heavy one may slow onset.
STACKING
Compounding the upside.

"Stacking" pairs a microdose with supportive compounds thought to extend neuroplasticity and smooth the experience. Evidence is early — treat these as wellness support, not a cure.

THE STAMETS STACK

The best-known pairing: microdose + Lion's Mane (Hericium erinaceus) for nerve-growth-factor support + a small dose of niacin (B3) as a proposed distribution aid. Popularised by Paul Stamets for plasticity; rigorous human data is still limited.

FOCUS SYNERGY

L-theanine (100–200mg) takes the edge off any over-stimulation and pairs cleanly with the focus LUCID is used for. If you drink coffee, keep it modest on dosing days — LSD already raises arousal.

FOUNDATION

Omega-3 (DHA/EPA), magnesium and vitamin D form the cellular backdrop plasticity depends on. Unspectacular on their own, genuinely supportive over weeks.

Suggested supportive supplements.

General wellness doses. Introduce one at a time and check interactions with anything you already take.

LION'S MANE

500–1000mg / day

Mushroom studied for nerve-growth-factor support. The classic plasticity companion.

OMEGA-3 (DHA/EPA)

1–2g / day

Structural fat for neuronal membranes; supports the cascade plasticity runs on.

NIACIN (B3)

50–100mg, optional

The Stamets-stack flush component. Optional and debated — start low; expect a warm flush.

B-COMPLEX

1 / day with food

B6, B9 and B12 underpin neurotransmitter synthesis and methylation.

MAGNESIUM

200–400mg PM

Glycinate or L-threonate for calm focus and sleep. Don't take alongside niacin's flush window.

VITAMIN D3

1000–2000 IU

Broad mood and immune support; most people run low, especially in winter.

L-THEANINE

100–200mg

Smooths over-stimulation into calm, clear focus. Pairs naturally with deep-work days.

BACOPA MONNIERI

300mg (50% bacosides)

Adaptogenic herb with memory-support evidence over 8–12 weeks of daily use.

SAFETY & INTERACTIONS
Read this first.

Microdosing is generally low-risk at sub-perceptual doses, but a few interactions are serious. This is harm-reduction information, not medical advice.

KNOWN INTERACTIONS

LITHIUM
Avoid entirely. Combining classic psychedelics with lithium is linked to seizures and serious adverse events. This is the single most important interaction to respect.
SSRIs / SNRIs
Often blunt or abolish effects. Do not stop prescribed antidepressants to "feel" a microdose — discontinuation is its own risk. Talk to your prescriber first.
MAOIs
Can unpredictably alter intensity and duration. Treat any MAOI combination with caution and professional guidance.
SEIZURE-THRESHOLD MEDS
Tramadol, bupropion (Wellbutrin) and stimulants lower the seizure threshold. Combine cautiously, if at all.
MENTAL HEALTH
A personal or family history of psychosis, schizophrenia or bipolar disorder is a reason to avoid — psychedelics can precipitate episodes.
PREGNANCY
Avoid during pregnancy and breastfeeding. Safety has not been established.
GENERAL
Don't drive or operate machinery if you feel any effect. Start at the lowest dose, keep a journal, and consult a qualified healthcare provider — especially if you take any daily medication.
WHAT'S IN THE BOX
Everything you need.

Every LUCID order ships complete — vial, formulation, protocol card and seal.

AMBER VIAL
1 dram borosilicate glass, UV-filtering to 450nm, with a precision fine-tip glass pipette.
200 CALIBRATED DROPS
Pre-measured liquid formulation at 5µg per drop in USP-grade ethanol. Shake gently before each dose.
PROTOCOL INSERT CARD
Complete dosing chart, the Fadiman protocol, delivery methods and a stacking guide.
SEALED WITH CARE
PTFE-lined cap, tamper-evident seal, ships in protective packaging.