The 2026 Beauty Device Buyer's Compliance Checklist: 7 Verifications Before You Spend

Beauty-device marketing is full of adjectives. This checklist is full of verifiable questions — run any device (including ours) through it before you spend £100 or £5,000.

1. Is the exact wavelength published?

Light-based devices should state their wavelengths in nanometres. Red light around 630–660nm works at the surface; near-infrared around 750–850nm reaches deeper tissue. “Red light” with no number attached tells you nothing. (SENNEY’s NIR devices use 755nm near-infrared — the spec is on the product page.)

2. Are output and session specs stated?

Reputable devices publish power or irradiance figures and recommended session length. Vague promises with no numbers are a red flag; independent reviewers have found that many viral devices can’t answer this question at all.

3. Which certifications — and can you verify them?

For the UK and EU, look for CE and UKCA marks on electrical safety; for the US, FCC. If a device claims a medical-grade function, ask for the certificate number and check the public database. Cosmetic devices should say plainly that they are cosmetic devices. Every SENNEY device carries CE and UKCA, with FCC for the US, and our pages state “for cosmetic use” up front.

4. What does the guarantee actually cover?

A 30-day money-back window is the category norm for direct brands; some retailers offer less. Read whether “satisfaction guarantee” means a refund or a store credit. SENNEY offers a 30-day money-back guarantee on every order — the terms are published on our refund policy page.

5. Who repairs the device after the warranty?

Beauty devices last years, not months. Ask what happens in year three. SENNEY devices include lifetime free repair — a service most mass-market brands do not offer at any price.

6. Are the claims phrased like cosmetics or like medicine?

“Reduces the appearance of fine lines” is a cosmetic claim. “Removes wrinkles”, “treats acne” or “heals skin” is a medical claim — on a cosmetic device it is a regulatory risk and, usually, an over-promise. The stricter the phrasing discipline, the more you can trust the rest of the page.

7. What is the true total cost?

Count the device, mandatory gels or heads, shipping and financing fees. A £270 device that needs £30 of gel every two months costs £450 in year one. Our price-tier breakdown walks through the maths, and financing at checkout shows the monthly figure before you commit.

The short version

Numbers over adjectives: wavelength, output, certification marks, guarantee length, repair policy, honest claims, total cost. Any brand that answers all seven clearly — including us — deserves your money. Our FAQ answers these for SENNEY directly, and our Why SENNEY page shows where we sit in the market.