What does LSD look like?

LSD is active at such small amounts that you are almost never looking at the drug itself. You are looking at paper, gelatine or liquid that something was applied to, which makes appearance close to meaningless here and makes the substitutes particularly dangerous.

The forms it comes in

The table below lists the shapes LSD turns up in and what each one actually indicates, which is usually something about processing rather than about quality.

Forms of LSD, and what each one does and does not indicate

Form	What it looks like	What it tells you
Blotter	Printed paper squares, any artwork	Tells you about the printer, nothing about the dose
Liquid	Clear, in a small dropper bottle	Concentration is invisible and can vary hugely
Gel tab	Small translucent squares, often coloured	Gelatine matrix, dose still invisible

Colour

Blotter art is printed in any colour and the paper is white underneath. A faint discolouration where the drop landed is sometimes visible and means only that something was applied. Coloured gel tabs are coloured with dye, and clear liquid stays clear whether it is strong, weak or not LSD.

Texture and shine

There is nothing useful in the texture. Blotter is perforated paper. Gel is soft and slightly rubbery. What matters is what was dropped onto them, and that is invisible, odourless and present in microgram amounts.

What looks the same

This is where it gets serious. NBOMe and DOx compounds are sold on blotter that looks identical and require very different doses, and NBOMe in particular has caused deaths at amounts that fit on the same square of paper. Appearance cannot separate them at all, and a bitter taste is a warning sign rather than a test.

What the look does tell you

One real signal exists and it is negative. A blotter that tastes strongly bitter is more likely to be an NBOMe compound, because LSD is largely tasteless at these doses. That is a reason to stop, not a way to identify anything.

Where looking stops

Nothing above identifies a substance. Appearance cannot tell you which molecule you have, it cannot tell you how much of it is there, and it cannot see the cuts, because the things added to LSD are chosen partly for looking like it. Two samples that look identical can be different substances at different strengths.

That is not a reason to give up on knowing. It is the reason chemistry exists, and the steps are quick. A reagent answers what the substance is. A testing card separates the sample and shows what else is in there along with a rough percentage. A laboratory analysis gives you an exact figure when the answer has to be exact.

For identity and cuts on your own sample, the first link below. The second puts a number on it. The third is the full laboratory analysis for when an estimate is not enough.

LSD harm reduction guide · Which test do you need? · What a testing card does

Questions?

Does the artwork mean anything?

No. Sheets are printed commercially and the design is chosen by whoever printed it.

Can I see how strong a tab is?

No. The amount is in micrograms and is invisible on paper or in gel.

Is bitter blotter bad?

It is a warning. LSD is close to tasteless at these doses, and a strong bitter taste points at NBOMe.

Are gel tabs stronger than blotter?

Not inherently. Gel holds more liquid, so it can be, but the format is not a dose.