Homedics SereneScent Vanilla Cedarwood Diffuser Oil, 120 ml

Diffuser: Homedics SereneScent Vanilla Cedarwood is a 120 ml fragrance oil refill formulated for waterless diffusion. Its described notes move from coconut water to vanilla, cinnamon and clove, then cedarwood and guaiacwood. The listing gives two different usage estimates, so treat the advertised duration as dependent on operating schedule and intensity.

At a glance

Bottle is designed to twist into compatible Homedics SereneScent waterless diffusers for use without added water or heat.
Scent profile combines vanilla and spices with cedarwood and smoky guaiacwood.
Manufacturer says it can also be poured into bottles for other waterless diffusers. The listing does not confirm fit in those units.

Price

$39.99Save 33%

Reference price: ~~$59.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

120 ml refill size, with a twist-in design intended for compatible SereneScent waterless diffusers.
The listed fragrance develops from coconut water and spiced vanilla into woody base notes.
Listing states the formula is free from parabens, phthalates, sulfates and formaldehyde.

Cons

The product is a fragrance refill, not a diffuser, so it requires a suitable diffuser for use.

Technical specifications

9 specifications

Identity
Brand	Homedics
Model	ARMH-EO120VCD

Product details
Volume	120ml
Package dimensions and weight	4.02 x 1.73 x 1.65 inches; 6.38 ounces

Formula and use
Diffuser type	Waterless diffusion
Use duration claim	up to 60 days of continuous fragrance (based on medium intensity usage for 12 hours/day)
Alternate use duration claim	up to 30 days, when used for 8 hours/day at medium intensity for the 120ml
Formulation claims	100% Free from Parabens, Phthalates, Sulfates, and Formaldehyde
Origin claim	Made in the USA

What to know before buying

Listing details to confirm

The stated duration is contradictory: one claim says up to 60 days at medium intensity for 12 hours daily, while another says up to 30 days at medium intensity for 8 hours daily. Actual use duration is not confirmed. The listing also says oils can be used in traditional ultrasonic diffusers by adding drops to water, although the refill is primarily formulated for waterless diffusion. Check the full ingredient information if you have sensitivities. Keep out of reach of children, avoid topical use and contact with eyes or mucous membranes, and note the stated possible skin irritation. Consult a healthcare practitioner if pregnant, lactating or managing a medical condition.

Who is it for?

A good fit for

Owners of compatible Homedics SereneScent waterless diffusers looking for a warm vanilla and wood fragrance.
Buyers who prefer a larger oil refill and are comfortable with duration varying by intensity and daily operating time.

Less suited to

Anyone who needs a complete diffuser rather than a refill.
People who need a verified use duration or confirmed compatibility with a particular non-Homedics diffuser.

Homedics SereneScent Vanilla Cedarwood Diffuser Oil, 120 ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 145 ratings

5 stars77%77%
4 stars8%8%
3 stars6%6%
2 stars3%3%
1 star6%6%

Customer feedback highlights the scent and perceived quality positively. That may matter most to buyers choosing a fragrance profile, but it does not establish that the scent will suit everyone. The overall rating distribution is mostly five-star with some lower ratings, and does not explain individual experiences or resolve the listing's conflicting duration estimates.

Positive themes

Customers mention the scent positively.
Customers describe the oil's quality positively.

Frequently asked questions

Does this include a diffuser?

No diffuser is listed as included. This product is the 120 ml fragrance oil refill.

How long does the oil last?

The listing gives conflicting estimates: up to 60 days at medium intensity for 12 hours daily, and up to 30 days at medium intensity for 8 hours daily. Treat duration as usage-dependent.

Which diffuser is it intended for?

It is specifically formulated for Homedics SereneScent waterless diffusers. The manufacturer also says it can be poured into bottles for other waterless diffusers, but does not specify compatibility for individual models.

Can it be used in an ultrasonic diffuser?

The listing says a few drops can be added to an ultrasonic diffuser's water tank, though the oil is primarily formulated for waterless diffusion.