MIMIKAI
Mosquito & Tick Repellent Spray
Spray · EPA-registered
Retailer links may earn us a commission. Scores are never affected.
Pros
- Long mosquito protection for a botanical-style formula, an EPA-label 8 hours from lemon eucalyptus plus methyl nonyl ketone.
- Fully disclosed and EPA-registered, a credible DEET-free choice.
Cons
- Ticks get a shorter 2 to 3 hours, and lemon eucalyptus can irritate sensitive skin.
- Not recommended for children under 3.
The full review
Pairing 11% oil of lemon eucalyptus with 7.75% methyl nonyl ketone, this EPA-registered DEET-free spray (Reg. No. 93616-1) earns a clear recommended. Effectiveness is the strength: our model reads complete protection at 3 to 4 hours against mosquitoes and 2 to 3 against ticks, and the label's up to 8 hour mosquito figure measures reduced biting rather than bite-free time. The evidence is favorable, with 5 of 8 audited claims strong, and safety holds up well. Points come off for an OLE caution against children under 3, moderate irritation at this strength, and high aquatic toxicity. Transparency is the soft spot only because the inert ingredients are not fully accounted for, leaving a credible, DEET-free alternative.
Scorecard
Expand any pillar to see exactly why it scored what it did.
Effectiveness45%83Mosquitoes: 3–4 h of complete protection. Ticks: 2–3 h of complete protection. 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 reasonable confidence.
Mosquitoes: 3–4 h of complete protection. Ticks: 2–3 h of complete protection. 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 reasonable confidence.
Evidence & honest claims25%64Methyl nonyl ketone is well-supported by published evidence, weighted by how close its concentration is to the studied effective dose (base 56). Of 8 marketing claims audited: 3 strong, 4 moderate, 0 weak, 1 unsupported (+8).
Methyl nonyl ketone is well-supported by published evidence, weighted by how close its concentration is to the studied effective dose (base 56). Of 8 marketing claims audited: 3 strong, 4 moderate, 0 weak, 1 unsupported (+8).
Safety15%76From published dermal toxicology (EPA/CIR/IFRA), scaled by each active's concentration against its leave-on limit: no notable sensitization risk; moderate irritation risk from Oil of Lemon Eucalyptus at 11% (−6); not recommended for children under 3 (Oil of Lemon Eucalyptus) (−8); high aquatic toxicity (−10).
From published dermal toxicology (EPA/CIR/IFRA), scaled by each active's concentration against its leave-on limit: no notable sensitization risk; moderate irritation risk from Oil of Lemon Eucalyptus at 11% (−6); not recommended for children under 3 (Oil of Lemon Eucalyptus) (−8); high aquatic toxicity (−10).
Transparency15%75This product publishes an ingredient list (+20); discloses 100% of active concentrations (+40); discloses 100% of all ingredient concentrations (+15); inert ingredients are not fully accounted for (0).
This product publishes an ingredient list (+20); discloses 100% of active concentrations (+40); discloses 100% of all ingredient concentrations (+15); inert ingredients are not fully accounted for (0).
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 (moderate confidence)
Estimated complete protection time from active ingredient + concentration; the source research used a spray-style formulation, matching this spray (no format adjustment). Partial protection (reduced but real bite suppression) is modeled to extend to ~7 h as repellency decays.
Tick estimate basis (low confidence)
Estimated complete protection time from active ingredient + concentration; the source research used a spray-style formulation, matching this spray (no format adjustment). Partial protection (reduced but real bite suppression) is modeled to extend to ~5 h as repellency decays. Witting-Bissinger 2008: 2-undecanone held at least 2.5 h on skin against the American dog tick, and is 2-4x more repellent than DEET to ixodid ticks in lab choice tests. Its strongest tick use is on treated clothing (multi-week).
Ingredient disclosure
This product publishes an ingredient list (+20); discloses 100% of active concentrations (+40); discloses 100% of all ingredient concentrations (+15); inert ingredients are not fully accounted for (0).
Only active ingredients are disclosed. The full ingredient list (inerts/carriers) is not published, so this may not be the complete formula.
- Oil of Lemon EucalyptusActive
Active repellent · 11%
- Methyl nonyl ketoneActive
Active repellent · 7.75%
Claims audit
What the marketing says, versus what the evidence supports.
“Protects against mosquito-borne West Nile Virus, Malaria, and St. Louis Encephalitis”
EfficacyStrongThe OLE 11% + 2-undecanone 7.75% blend gives an ~8 h mosquito estimate, DEET-class duration that supports a general protection-against-mosquito-borne-disease claim.
“Active is the only federally registered repellent in EPA's lowest Toxicity Category 4”
SafetyModerateStated on brand page; supports existing SAFETY/non-toxic positioning.
“Non-toxic when used as directed”
SafetyModerateBrand states the product earned the lowest repellent toxicity classification; 'non-toxic' is a marketing simplification.
“EPA-registered for family use, ages 2+”
Kid SafeUnsupportedContradicts age guidance: Oil of Lemon Eucalyptus is not recommended under 3 years, but this claims use from 24 months.
“Scientifically proven as effective as DEET”
EfficacyStrongAt an ~8 h mosquito estimate the OLE + 2-undecanone blend is genuinely DEET-class (2-undecanone is field-comparable to mid-range DEET), so the 'as effective as DEET' equivalence is evidence-backed rather than puffery.
“DEET-free and picaridin-free plant-powered formula”
Deet FreeStrongActives are botanical-derived OLE and 2-undecanone.
“Up to 4 hours of protection against ticks”
DurationModerateWithin the partial-protection window: complete (bite-free) protection is ~3 h, with reduced protection persisting to ~5 h. The claimed 4 h is optimistic but plausible as partial protection.
“Up to 8 hours of protection against mosquitoes”
DurationModerateWithin the partial-protection window: complete (bite-free) protection is ~4 h, with reduced protection persisting to ~7 h. The claimed 8 h is optimistic but plausible as partial protection.
Safe around dogs & cats?
Worst case from this product’s active ingredients. Do not apply this or any human repellent to your pet.
Mainly from Oil of Lemon Eucalyptus.
Not veterinary advice. Full guide to repellents around pets →
The label
Ingredients, warnings, and directions from the package label. Read it before you buy.
