NewSmile vs Impress UK: Clear Retainer Comparison (2026)

June 04, 2026

Written by Joanna M., Director of Telehealth Clinical Operations | Fact-Checked for Clinical Accuracy

Impress (formerly Smile2Impress) is a European clear aligner brand operating in the UK with physical clinics. NewSmile specialises in custom clear retainers and night guards as standalone mail-order products at 109 each, with a subscription model and 1,463 verified reviews that Impress does not match on the retainer side.

Impress focuses on aligner treatment delivered through clinics. For patients who have finished treatment or need standalone retainers, NewSmile offers better value and more flexibility.

Side-by-Side Comparison

Feature	NewSmile UK	Impress UK
Retainer price (both arches)	109	Part of treatment package
Standalone retainers	Yes, any patient	Primarily treatment-linked
Night guard	Yes, 109	Not offered standalone
Subscription	99 every 6 months	No
Mail-order impressions	Yes, at-home kit	Clinic visit required
Fit guarantee	30 days	Varies by treatment

1. Mail-Order vs Clinic-Based

Impress requires clinic visits for treatment. NewSmile's custom clear retainers at 109 are ordered entirely by post with an at-home impression kit -- no clinic visits, no appointments.

2. Night Guards

Impress does not offer standalone night guards. NewSmile's custom night guard at 109 is available directly without any treatment package.

3. Subscription

NewSmile's subscription plan delivers fresh retainers every 6 months for 99. Impress has no equivalent standalone retainer subscription.

Our Verdict

Impress is a strong choice for UK patients seeking in-clinic aligner treatment. For standalone custom retainers and night guards with mail-order convenience, a subscription model, and 1,463 verified reviews, NewSmile is the better option.