Quick answer

If you prefer a warm, woody vetiver scent with a touch of spice, go with Molecule 04. If you want a fresh, green, and slightly floral vetiver, choose Molecule 03.

Scent profile: vetiveryl acetate vs iso e super

Molecule 03 is built around vetiveryl acetate, which gives a clean, green, and slightly floral vetiver note. It's lighter and more refreshing than traditional vetiver. Molecule 04 uses iso e super, a warm, woody, and slightly spicy molecule that is often described as 'your skin but better.' It's more subtle and intimate.

ATOM.iser system: refill vs set

The Molecule 03 ATOM.iser Refill is a replacement cartridge for the ATOM.iser Travel Set, so you need the travel case to use it. The Molecule 04 ATOM.iser Set includes both the fragrance and the travel case, making it a complete, ready-to-go solution. If you already own an ATOM.iser case, the refill is more economical. If you're starting fresh, the set is the practical choice.

Molecule 04 vs Molecule 03: The trade-offs

  • Scent character: Molecule 03 is fresh, green, and floral; Molecule 04 is warm, woody, and spicy. Choose based on whether you prefer a bright or a cozy scent.
  • Longevity and projection: Molecule 04 (iso e super) is known for moderate projection and longevity; Molecule 03 (vetiveryl acetate) is lighter and may fade faster. If you want a scent that lasts longer, Molecule 04 is the safer bet.
  • Price and value: The Molecule 03 refill costs USD 44.85 (down from USD 65.00), while the Molecule 04 set is USD 82.50 (down from USD 110.00). If you already have an ATOM.iser case, the refill is more affordable. If not, the set is a complete package.

Product facts

  • Molecule 03 ATOM.ISER Refill: Molecule 03 ATOM.iser Refill requires the ATOM.iser Travel Set to function. You need to already own or purchase the travel case separately, making this a refill-only option for existing users.

    Molecule 03 ATOM.ISER Refill

    Molecule 03 ATOM.ISER Refill

  • Molecule 04 ATOM.iser. Set: Molecule 04 ATOM.iser Set includes both the fragrance and the travel case. It's a complete, ready-to-use set for those who don't already have an ATOM.iser case.

    Molecule 04 ATOM.iser. Set

    Molecule 04 ATOM.iser. Set

Which one fits you?

Best for

  • Fans of fresh, green, floral scents who want a light, refreshing vetiver
  • Those who already own an ATOM.iser case and want a cost-effective refill

Not for

  • People who prefer warm, woody, and spicy scents (choose Molecule 04 instead)
  • First-time buyers who don't have an ATOM.iser case (the refill won't work alone)