Roll Call

Every ingredient answers to a name. Roll Call tells you whose.

Everything you put on or in your body comes with an ingredient list. Photograph a personal-care label or a supplement’s Supplement Facts panel — even a handmade one with no barcode — and get a plain-language, evidence-graded introduction to every ingredient on it.

Take attendance

Oat & calendula bar

Handmade label · 7 ingredients

1 of 7 on the label

“Sodium olivate?”

Here!olive oil soap

The soap itself — the formal name for saponified olive oil. Not an additive; it’s the base doing the cleansing.

2 of 7 on the label

“Avena sativa kernel flour?”

Here!ground oats

Finely milled oats. As an ingredient, colloidal oat is formally listed in the FDA’s skin-protectant monograph, with decades of study behind it. 21 CFR 347.10

3 of 7 on the label

“Calendula officinalis extract?”

Here!marigold extract

A traditional botanical. Evidence on the extract is mixed: a 2019 systematic review found support mostly in animal studies, with inconsistent human trials. Givol et al., 2019

Notes describe published research and regulatory status of each ingredient itself — not claims about this or any product.

How it works

  1. 1

    Take the photo

    Snap the ingredient list or a Supplement Facts panel — handwritten on a craft-fair label or laser-printed on a bottle. Scan a barcode, or paste the text if you have it.

  2. 2

    We call the roll

    Every ingredient answers to its formal name. We tell you who each one actually is, in plain language.

  3. 3

    You get the sheet

    What each ingredient is, why it’s in there, and what the evidence actually says — including when the evidence is thin.

We do not score products. We explain them.

Other apps hand a product a red, yellow, or green score and call it a day — no dose, no context, no sense of how good the evidence is. Roll Call never scores a product. It explains what each ingredient is, why it’s in there, and what the research actually supports — including when a concern only applies in a context that doesn’t match the product in your hand. For a supplement, that context is usually the dose — so we show how the amount on the label compares to the amount actually studied.

Per-ingredient evidence grades, spelled out in words. No product verdicts, no rankings, no recommendations.

Because ingredients matter.