Gel Polish
Top PickThe announcement bar on every page reads Spring Gel Sale, up to 30% off gel polish, on now. On the homepage the HEMA-Free Builder Gel, BIAB in a Bottle, is shown from $18.75 against a $25.00 list price.
Limited Time Offer
1st Order
The sign-up block at the foot of the homepage is headed Your First Order, 10% Off. Subscribers also receive new colour drops, education and exclusive offers by email.
Limited Time Offer
$150+
NSI Australia ships free of charge Australia-wide on orders of $150 or more. Orders leave the Gold Coast, Queensland within 1 to 2 business days, and in-stock orders placed before 11am can go out the same day.
Limited Time Offer
Clearance
The Clearance Specials collection marks Letter Nail Art Charms at $1.00 instead of $5.00, a saving of 80%. The Lotus Crystal Jar is $10.00 instead of $20.00, the Energizing Tonic Lotion Spray 125ml is $9.60 instead of $16.00 and Classic Acrylic Nail powder 40g is $19.50 instead of $30.00.
Limited Time Offer
Club NSI
Club NSI is free to join and credits 4 reward points for every $1 spent. The homepage lists $10 back for 1,000 points, $20 back for 2,000 points and $30 back for 3,000 points.
Limited Time Offer
Past their end date, but often still working — worth a try at checkout.
Halloween
UnverifiedThe NSI Australia homepage leads with its Halloween Nail Art Sale: 20% off when you spend $60 or more on nail art with this code. The banner links to the nail art collection, which covers chromes and pigments, foils, glitters, stickers, rhinestones and charms.
Expired: Oct 31, 2026
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Parfumania NL offers 1 coupon and 5 deals and a 4.8/5 rating from 65 reviews.
ulta.com
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El Morocco Perfumery offers 5 deals and a 4.2/5 rating from 241 reviews.
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Extra codes from partner brands, refreshed alongside this store's offers.
A practical savings guide for shoppers using NSI Nails offers.
The code shown on the NSI Australia homepage is SPOOKY20, part of the Halloween Nail Art Sale: 20% off when you spend $60 or more on nail art. The site also runs a Spring Gel Sale with up to 30% off gel polish and gives 10% off a first order to people who sign up by email.
Social Proof
Ratings and written reviews from shoppers who used these offers.
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