Losing your sense of smell — whether from a viral infection, head trauma, or aging — strips away more than aroma; it mutes flavor, dulls memories, and can even compromise safety when you can’t detect smoke or gas. The science-backed protocol of olfactory training uses repeated, structured exposure to specific scents to stimulate the olfactory epithelium and encourage neural regeneration. A smell training kit delivers those essential aromas in a consistent, portable format designed for daily therapy sessions.
I’m Mohammad — the founder and writer behind ProteinJug. I’ve spent years analyzing wellness hardware and sensory therapy products, comparing the purity of essential oils, the ergonomics of inhaler designs, and the structural quality of packaging to identify which kits actually support the neuroplasticity this therapy demands.
After evaluating the oil purity, scent intensity, session guidance, and durability of the top options, I’ve curated this guide to the best smell training kit so you can confidently choose one that fits your recovery goals and daily routine.
How To Choose The Best Smell Training Kit
Not all smell training kits are created equal. The difference between a kit that supports genuine neural adaptation and one that just smells nice often comes down to oil purity, the number of training phases, and the quality of the delivery system. Here are the factors that matter most.
Essential Oil Purity and Potency
The strength and therapeutic grade of the oils directly impact how effectively they stimulate the olfactory nerve. Look for kits that use 100% pure, undiluted essential oils without synthetic fragrances. Real oils produce a cleaner, more intense signal to the brain, which is critical when your olfactory receptors are already compromised. Kits that rely on diluted or artificial scents may not provide the consistent sensory input needed for regeneration.
Number of Training Phases
Basic kits offer one set of four scents — the classic lemon, rose, eucalyptus, and clove — which is the minimum standard for olfactory training. More advanced kits include a second phase with additional fragrances like cinnamon, lavender, or grapefruit to expand the scent palette after the initial recovery. Phased training helps your brain rebuild its ability to differentiate between a wider range of aromas, not just the core four.
Delivery Format and Usability
The way you access the scent — whether from an inhaler tube, a dropper bottle you apply to a cotton pad, or a small jar — affects both convenience and consistency. Inhalers are the most portable and hygienic option, allowing you to train discreetly anywhere. Liquid oils in dropper bottles offer more control over intensity but require additional preparation. Consider how easily you can integrate twice-daily sessions into your routine without friction.
Quick Comparison
On smaller screens, swipe sideways to see the full table.
| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| MOXĒ Smell Training Kit | Premium | Phased recovery with 8 scents | 8 essential oils in 2 phases | Amazon |
| Ilios Olfactory Kit | Mid-Range | Liquid oil flexibility | 4 x 10 mL pure oil bottles | Amazon |
| Smell Project by Green Manatee | Premium | Structured tracking and logs | Includes custom guide and log | Amazon |
| NeilMed Smell Restore | Mid-Range | Classic protocol inhalers | 4 separate essential oil inhalers | Amazon |
| SmellHance Training Kit | Budget | Entry-level portability | 4 aromatherapy inhalers | Amazon |
In‑Depth Reviews
1. MOXĒ Smell Training Kit
MOXĒ stands alone among the kits reviewed by offering a true two-phase training system. Phase 1 focuses on the four core therapeutic scents — rose, eucalyptus, lemon, and clove — which are clinically linked to neural regeneration. Phase 2 introduces cinnamon, lavender, and other aromas to broaden scent differentiation once the basic pathways begin to reconnect. A personal log and step-by-step guide are included to keep sessions consistent.
Every inhaler is filled with 100% pure, unadulterated therapeutic grade essential oils sourced and manufactured in the USA. The compact inhaler design allows for easy, mess-free daily sessions, and users report that the scents are intense and clearly distinguishable — even for those with partial recovery. The packaging is designed with accessible caps that are manageable for users with arthritis or reduced dexterity.
The biggest differentiator is the built-in progression model: you don’t just train with the same four scents indefinitely. Once Phase 1 succeeds, Phase 2 challenges the brain to recognize a wider variety of olfactory inputs, which is crucial for moving beyond basic scent detection toward full differentiation. This phased approach makes the MOXĒ kit the most comprehensive option for anyone serious about long-term recovery.
Why it’s great
- Two-phase bundle with 8 total essential oils for gradual scent diversification
- USA-made, therapeutic grade oils in portable inhaler format
- Includes structured guide and log for consistent twice-daily sessions
Good to know
- Grapefruit scent in Phase 2 may smell slightly off to some users
- Hard outer box can be tricky to open; using the lid as a display stand helps
2. Ilios Olfactory Smell Training Kit
Ilios takes a liquid-oil approach, delivering four 10 mL bottles of pure, natural essential oils — lemon, clove, eucalyptus, and rose — free from synthetic fragrances or additives. The kit also includes four empty dropper bottles for easy application, plus a step-by-step guide describing how to start and what to expect as therapy progresses. This format gives you greater control over scent intensity compared to pre-filled inhalers.
The oils are sourced for their ability to stimulate olfactory areas, making them suitable for anosmia, parosmia, temporary loss, or hyposmia. Users consistently describe the scents as high quality and strong, with leak-resistant dropper bottles that prevent mess during daily use. The kit is also compatible with the free snif.abscent app, which provides timing cues and progress tracking for more structured training.
One consideration is that the instruction sheet contains slightly contradictory notes about rotating oils, which can cause confusion for a first-time user. The scents, while pure, are a bit faint for some households — this likely reflects the absence of low-quality artificial amplifiers rather than a formulation flaw, but it’s worth noting if you prefer a very aggressive aroma profile.
Why it’s great
- Pure, natural essential oils in 10 mL dropper bottles offer customizable intensity
- Compatible with an app for session timing and progress tracking
- Leak-resistant design and well-packaged for portability
Good to know
- Instructions contain conflicting advice on oil rotation
- Scents may feel subtle to some users compared to synthetic alternatives
3. Smell Training Kit by Green Manatee (The Smell Project)
The Smell Project by Green Manatee focuses on real, undiluted essential oils in 10 mL glass vials, with four scents selected to cover the full odor spectrum: lemon, eucalyptus, rose, and clove. A custom-designed guide and training log are included, making it easy to track objective progress over weeks of therapy. The oils are potent enough to produce strong, authentic aromas — crucial for users with diminished olfactory sensitivity.
Doctor referrals are common for this kit, and long-term users report meaningful recovery milestones: one chronic sinusitis patient with four surgeries described going from zero smell detection at 3.5 weeks to 70% restoration after seven months of consistent use. The kit includes small jars alongside the oils, allowing you to decant a few drops and avoid contaminating the main bottle, which is a smart design touch for daily use.
The main drawback is that the included jars are plastic rather than amber glass, which is a downgrade some users would prefer for long-term oil storage. A few units have also arrived with minor cosmetic damage during shipping. The oils themselves are sourced from a manufacturer that lacks prominent brand credibility, which may matter for purists who prioritize transparency in sourcing.
Why it’s great
- Real, undiluted essential oils deliver potent and genuine scents
- Includes a custom training log for objective progress tracking over weeks
Good to know
- Jars are plastic rather than glass, which may affect long-term oil quality
- Oil manufacturer lacks prominent branding or origin transparency
4. NeilMed Smell Restore
NeilMed Smell Restore follows the original clinical protocol with four separate essential oil inhalers — eucalyptus, rose, lemon, and clove — each containing all-natural oil. The inhaler format is the most convenient for on-the-go training because you can simply uncap and sniff without any preparation. The kit is backed by a large body of research indicating that daily practice with known aromas can regenerate olfactory neurons.
User results are impressive for a mid-range kit: one chronic sinusitis patient who had four surgeries and lost smell for years experienced partial recovery in one nostril within weeks, eventually reaching 70% restoration after seven months and a second kit. Another user who lost smell after a sinus infection reported full recovery with consistent daily use. The scents are pleasant and accessible, making it easy to stay motivated during the weeks therapy requires.
The trade-off is that the inhalers are single-use disposable units — once the scent fades, you need a new kit rather than refilling a bottle. Several users note that the benefits do not automatically transfer to non-training scents; you still need to stick with the protocol to maintain progress. A few people with long-term smell loss have found minimal improvement after a week, but that is consistent with the 2-4 week timeline most clinicians recommend for measurable change.
Why it’s great
- Individual inhalers require zero setup — uncap and start training
- Backed by research on olfactory neuron regeneration through daily exposure
Good to know
- Inhalers are single-use; once scent weakens the entire kit needs replacement
- Progress may plateau if training is not maintained every day
5. SmellHance Smell Training Kit
SmellHance is the most affordable kit in this roundup, designed specifically for travel-friendly daily use. The four aromatherapy inhalers are compact and lightweight — the entire package weighs just over 1.5 ounces — making it possible to carry in a pocket or purse for mid-day sessions. The scents follow the classic protocol, providing a baseline level of olfactory stimulation for users who want an entry point without a larger investment.
Users who lost smell due to COVID report encouraging results: faint lemon detection by day three, eucalyptus by day four, and the ability to identify all four scents by day six — though not at full strength. The kit requires a commitment of twice-daily sessions, and persistent users who trained for months were able to smell everyday things like coffee, candles, and perfume again. The small profile also makes it easy to be discreet in public spaces.
The main criticism across reviews is that the odors are relatively faint, even for people with some remaining sense of smell. One reviewer with phantosmia found the scents too light and recommended using real items like a lemon or fresh eucalyptus leaves instead. There have also been occasional reports of leaking scent containers, which can make the kit less appealing if you need a pristine travel companion.
Why it’s great
- Ultra-light and compact for training anywhere without prep
- Lowest entry cost to try the classic four-scent protocol
Good to know
- Scent intensity is weaker compared to kits with pure oils or larger inhalers
- Reported occasional leaking of the scent containers during shipping
FAQ
How long does it take for smell training to show results?
Can I make my own smell training kit from household items?
What is the difference between anosmia, hyposmia, and parosmia?
Final Thoughts: The Verdict
For most users, the best smell training kit winner is the MOXĒ Smell Training Kit because its two-phase system with 8 therapeutic grade oils provides the most structured path from basic scent detection to full differentiation. If you prefer liquid oil flexibility with app integration, grab the Ilios Olfactory Kit. And for a straightforward, zero-prep classic protocol, nothing beats the NeilMed Smell Restore.