Product testing for autistic
and sensory-sensitive adults.
Most products have not been examined under the right conditions. This site does. Box of Small Things investigates everyday products: earplugs, fragrance-free shampoos, household items for the details that most reviewers overlook and that matter most to autistic and sensory-sensitive adults. Scent under heat. Occlusion pressure in the ear. What the label claims, and whether it holds. New to the site or recently diagnosed? Start with why some environments are hard, and what you can do about it.
If a product fails in ways that matter to sensitive people, it is noted here. No particular pleasure is taken in it. It is simply the job.
Which Earplugs Actually Work for Sensory-Sensitive Adults?
Ten products tested across seven environments: quiet room, bus, supermarket, open-plan office, café, and home kitchen. Frequency perception, canal pressure, occlusion effect, and hygiene recorded. Ten case files published.
Which “Fragrance-Free” Shampoos Are Actually Low-Scent?
Eight products. Tested in hot water, hard water conditions. Claims verified. Scent behaviour recorded. Failure modes documented.
Field note: scent intensity was assessed over three stages.
The Dispatch
Investigation findings sent when a study completes. No schedule. No filler. One email per investigation.
Recent case files
Investigation No. 2 – Earplugs
Comparison — both case files
Same housing. The hollow filter in the Engage eliminates piston pressure on insertion, a property Loop do not document. They suit opposite environments.
Comparison — both case files
Loop Quiet 2 vs Alpine Silence
Two flanged silicone designs, one clear split. Different strengths and weaknesses discovered.
Case file — Caution
Loop Quiet 2 Silicone Earplugs
Strong overall attenuation. The occlusion effect becomes counterproductive in quieter environments and during conversation.
Case file — Caution
Hollow filter removes piston pressure on insertion. Best for conferences and supermarkets. Counterproductive in a talking open-plan office.
Case file — Flagged
But it is a bit like a medieval knight going into battle with armour only on their feet – the protection exists, it just isn’t where the problem is…
Case file — Flagged
It was time to consider if the premium model could stand where its silicone cousin fell.
Case file — Caution
Unchanged since 1907. Higher low-frequency attenuation than Loop at a fifth of the price. The handling texture is the trade-off.
Case file — Cleared
Mack’s Pillow Soft Silicone Putty
Entrance-seal design avoids the piston effect entirely. Outperforms Loop on low and high frequencies. The putty texture divides opinion.
Case file — Flagged
A flight product put through the daily-noise tests. On the ground, it had no help to offer.
→ All earplug case files · Earplug methodology
Investigation No. 1 – Fragrance-free shampoos
Case file – Cleared
Eleven ingredients. Lowest scent intrusion in the batch: neutral cold, lathered, and under steam. The reference product.
Case file — Caution
Effective cleansing, low ingredient count. A medicinal odour becomes prominent at shower temperature.
Case file — Flagged
A strong warm glue-like scent releases under hot water despite the fragrance-free claim. The aloe extract is the source.
→ All 8 shampoo case files · Shampoo testing methodology
Field reports
Cross-product findings from within each investigation. One question, all tested products, ranked.
Earplug Field Report
Earplugs for sensory overload
Five environments, ten products, one map.
Earplug Field Report
Earplugs for autistic shutdown and meltdown
What the testing data says about recovery conditions.
Earplug Field Report
Earplugs for misophonia
10 earplugs tested across 7 environments.
Earplug Field Report
Flare Calmer vs Loop: Which Actually Quiets a Noisy Room?
The investigation tested two popular product lines and measured what actually reaches the ear.
Earplug Field Report
Wax vs silicone earplugs
Two materials, opposite failure modes. Tested head to head.
Explainer
The occlusion effect, explained
Why earplugs make your own voice boom, and which designs make it worse.
Shampoo Field Report
Which rinse without the squeak?
Squeak assessed at three rinse stages.
Shampoo Field Report
Which produce the least foam?
Lather volume and spread behaviour tested.
Shampoo Reference Guide
Ingredient sensitivity guide
8 products cross-referenced against 8 common sensitivities.
Who this site is for
Sensory-sensitive and neurodivergent adults are largely overlooked both by mainstream reviewers and by most manufacturers. Products labelled fragrance-free, gentle, or sensory-friendly are rarely tested against the failure modes that matter: smell that activates under heat, pressure that builds in a small ear canal, textures that change on skin.
This site tests those things, documents what it finds, and publishes the results including when a product that claims to be suitable is not.
How we test
- First-hand testing in real-world conditions
- Claims checked before results are recorded
- Failure modes named directly, not softened
- Verdicts: Cleared / Caution / Flagged (not stars)
Investigations No. 1 and No 2. complete. A new investigation is underway: how we test noise cancelling headphones for sensory sensitivity, with the first Case Files arriving at the end of June. Last updated: June 2026.