Erbology discloses more overall — based on ingredient quality, transparency, value, and trust signals.
Higher overall score
0.0
/10Partially Documented
Some evidence provided but notable gaps remain.
This score reflects disclosure completeness — not a verdict on product quality.
Scored: June 2026
0.0
/10Limited Disclosure
Key information such as beta-glucan content is not publicly available.
This score reflects disclosure completeness — not a verdict on product quality.
Scored: May 2026
Score breakdown by dimension
| Erbology | Dimension | Four Sigmatic |
|---|---|---|
5.8 | Ingredient Quality35% | 5.8 |
6.7▲ | Transparency30% | 3.3 |
4.0▲ | Value20% | 2.0 |
9.0▲ | Trust10% | 3.0 |
5.0 | Consumer Experience5% | ▲7.0 |
Key facts
| Erbology | Fact | Four Sigmatic |
|---|---|---|
| whole_powder | Extraction method | water_extract |
| fruiting_body | Mushroom source | fruiting_body |
| 7% | Beta-glucan % | — |
| Yes | Beta-glucan verified | Not disclosed |
| Yes | COA available | Not disclosed |
| Yes | Organic certified | Yes |
| 4.4 (890 reviews) | Trustpilot score | 4.4 (200 reviews) |
| £0.40 | Price per serving | £1.50 |