Heretic Parfum
The Entomologist Insect Repellent Spray
Spray · Marketed as 'EPA-compliant' natural repellent, consistent with FIFRA 25(b) minimum-risk exemption (not EPA-registered)
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Pros
- A complex, perfume-grade botanical blend that genuinely smells like a fragrance, not bug spray.
Cons
- Concentrations are undisclosed, and there's no proven repellency.
- A dense mix of geranium, cinnamon, and clove oils makes it one of the more sensitizing options.
- Likely not built to EPA repellent standards.
The full review
Pitched as a wearable functional fragrance, this eight-oil blend is not recommended as protection. With no concentrations disclosed, coverage cannot be modeled and the effectiveness pillar bottoms out, while the brand's own once-an-hour reapplication advice signals how briefly it works. The evidence is soft, with 2 of 6 audited claims weak, though cedarwood oil does carry decent published support. Safety is the larger concern, driven by a high sensitization risk from geranium oil, high irritation from thyme oil, and a pregnancy caution, with a dense mix of clove and cinnamon adding to the load. Publishing the full formula earns transparency credit, yet without any quantified strength it is appealing as a perfume and unproven as a repellent.
Scorecard
Expand any pillar to see exactly why it scored what it did.
Effectiveness45%10Mosquitoes: protection cannot be modeled because the active concentration is undisclosed. Ticks: protection cannot be modeled because the active concentration is undisclosed. Protection times are modeled from the actives, concentration, and format (see methodology). Scored on a saturating curve (each added hour counts less than the last), 65% mosquito / 35% tick, with lower confidence.
Mosquitoes: protection cannot be modeled because the active concentration is undisclosed. Ticks: protection cannot be modeled because the active concentration is undisclosed. Protection times are modeled from the actives, concentration, and format (see methodology). Scored on a saturating curve (each added hour counts less than the last), 65% mosquito / 35% tick, with lower confidence.
Evidence & honest claims25%39Cedarwood oil is well-supported by published evidence, weighted by how close its concentration is to the studied effective dose (base 43). Of 6 marketing claims audited: 2 strong, 2 moderate, 2 weak, 0 unsupported (-4).
Cedarwood oil is well-supported by published evidence, weighted by how close its concentration is to the studied effective dose (base 43). Of 6 marketing claims audited: 2 strong, 2 moderate, 2 weak, 0 unsupported (-4).
Safety15%60From published dermal toxicology (EPA/CIR/IFRA), scaled by each active's concentration against its leave-on limit: high skin-sensitization risk from Geranium oil (−18); high irritation risk from Thyme oil (−12); caution advised in pregnancy (−6); moderate aquatic toxicity (−4).
From published dermal toxicology (EPA/CIR/IFRA), scaled by each active's concentration against its leave-on limit: high skin-sensitization risk from Geranium oil (−18); high irritation risk from Thyme oil (−12); caution advised in pregnancy (−6); moderate aquatic toxicity (−4).
Transparency15%45This product publishes an ingredient list (+20); discloses 0% of active concentrations (+0); discloses 0% of all ingredient concentrations (+0); the full formula including inerts is accounted for (+25).
This product publishes an ingredient list (+20); discloses 0% of active concentrations (+0); discloses 0% of all ingredient concentrations (+0); the full formula including inerts is accounted for (+25).
Every pillar is scored from published rules. Read how we score.
How long it protects
Complete protection ends when the first bite gets through; partial protection keeps reducing bites as repellency decays. EPA label times are verified; the rest are modeled from the actives, concentration, and format.
Mosquito estimate basis (low confidence)
No protection time estimated — this product's label doesn't disclose the active ingredient's concentration, and protection depends on both the ingredient and its strength.
Tick estimate basis (low confidence)
No protection time estimated — this product's label doesn't disclose the active ingredient's concentration, and protection depends on both the ingredient and its strength.
Ingredient disclosure
This product publishes an ingredient list (+20); discloses 0% of active concentrations (+0); discloses 0% of all ingredient concentrations (+0); the full formula including inerts is accounted for (+25).
Active ingredient concentrations are not published for this product.
- Cedarwood oilActive
Active repellent (botanical) · concentration not disclosed
- Clove oilActive
Active repellent (botanical) · concentration not disclosed
- Rosemary oilActive
Active repellent (botanical) · concentration not disclosed
- Geranium oilActive
Active repellent (botanical) · concentration not disclosed
- Thyme oilActive
Active repellent (botanical) · concentration not disclosed
- Lemongrass oilActive
Active repellent (botanical) · concentration not disclosed
- Peppermint oilActive
Active repellent (botanical) · concentration not disclosed
- Cinnamon oilActive
Active repellent (botanical) · concentration not disclosed
- Organic non-GMO sugarcane alcohol
Carrier · concentration not disclosed
- Eugenol
Naturally derived fragrance component (from clove oil) · concentration not disclosed
- Water
Carrier · concentration not disclosed
Claims audit
What the marketing says, versus what the evidence supports.
“Recommended reapplication once every hour”
DurationWeakBrand instructs reapplying 'once every hour'; implies short protection duration. No tested hours figure published.
“No phthalates, parabens, synthetic dyes, or formaldehyde; vegan and cruelty-free”
SafetyModeratePer manufacturer ingredient disclosure and marketing.
“100% natural or naturally-derived ingredients (per ISO 9235)”
NaturalStrongBrand discloses every ingredient and cites the ISO 9235 natural aromatic raw materials standard.
“Blend of essential oils proven to repel mosquitoes and other biting insects”
EfficacyWeakThe individual oils have documented repellency in lab studies, but no product-level efficacy or duration testing is published, and the brand's own hourly-reapplication advice implies short protection.
“EPA-compliant minimum-risk formulation”
OtherModerateMarketed as 'EPA-compliant'; the ingredient set is consistent with FIFRA 25(b), but the brand does not publish active-ingredient percentages in its online copy as 25(b) labels require on-pack.
“DEET-free, 100% natural plant-based formula”
Deet FreeStrongFull ingredient list discloses only botanical oils, sugarcane alcohol, and water.
How to apply it
Spray onto exposed skin (and can be worn anywhere as a fragrance) before going outdoors. Because the formula contains none of the long-lasting registered actives, the brand recommends reapplying approximately once every hour while outside. Avoid eyes and broken skin as with any alcohol-based spray; no child-specific directions are provided by the manufacturer.