MR NAIL O Series Functional Gels — Prep, Base, Builder & Top Coats

MR NAIL O Series is a collection of functional nail gels and prep products for adhesion, tip bonding, building, reinforcement, and finishing. The series includes options for different stages of a gel manicure, making it easy to select the appropriate base, structure gel, or top coat for each service.

The O Series works especially well with the MR NAIL U Series. Use an O Series prep or base product before applying U Series builder gels, cream colors, glitter gels, or liner gels. Complete the manicure with an O Series high-gloss or matte top coat, depending on the finish you want.

Product Details

• Brand: MR NAIL
• Collection: O Series
• Product type: Functional nail prep and gel system
• Functions: Prep, adhesion, base, tip bonding, building, reinforcement, and finishing
• Top coat finishes: High-gloss and matte, depending on the selected option
• Compatible collection: MR NAIL U Series builder gels, gel colors, glitter gels, and liner gels
• Purchase options: Sold individually by product
• Curing: Follow the instructions for the selected product and lamp

O Series Product Guide

Each MR NAIL O Series product is designed for a specific step in gel nail prep, building, finishing, tip application, or nail art. The prep and base products work with MR NAIL U Series builder gels and gel colors, while the top coats and specialty gels can be used to finish or add art effects to U Series manicures.

O1 — Primer/Bonder

O1 prepares the natural nail before base gel application. The air-dry formula removes surface oil, helps balance the nail’s pH, and improves adhesion to reduce lifting. After buffing and cleansing the nail, apply an even amount and allow it to air-dry. No lamp is required.

O2 — 2-in-1 Super Sticky Base Gel + Nail Tip Adhesive

O2 is a thin, flexible base gel designed to create a strong bond between the natural nail and gel color. Use it after O1 Nail Dehydrator & pH Balancer, then follow with an MR NAIL U Series builder gel, cream color, glitter gel, or liner gel. Apply an even layer and cure for 30–60 seconds.

O3 — Super Sticky Rubber Builder Base Gel

O3 combines an adhesive base with light building and shaping support. Its self-leveling consistency can be used to reinforce the nail and create a smooth C-curve while maintaining some flexibility. After applying O1, brush on a thin slip layer, add an appropriate amount of gel, and guide it into shape with light pressure. Cure for 60–120 seconds.

O4 — Self-Leveling Builder Gel

O4 is a clear builder gel with a softer, more fluid consistency. It levels quickly while remaining controlled around the sidewalls, making it suitable for technicians who are still learning nail structure and C-curve shaping. Apply after base gel using a thin slip layer followed by a building layer. Cure for 30–60 seconds.

O5 — Fast-Flowing Self-leveling Extend Gel

O5 is a firmer reinforcement gel for strengthening the nail and creating structure efficiently. It can be used for C-curve building, gel blending, blooming effects, and encapsulating stickers or gold foil. Apply evenly after base gel and cure for 30–60 seconds. Its firmer structure is better suited to experienced nail technicians.

O6 — 2-in-1 Builder & Top Coat

O6 combines light building and top-coat functions in one clear gel. The glass-like finish can be used over MR NAIL U Series colors to smooth the nail surface, create a C-curve, and encapsulate stickers or dried flowers while adding a glossy protective finish. Apply evenly as a top coat, or use a thin slip layer followed by a building layer. Cure for 60–120 seconds.

O7 — Crystal Shine Top Coat

O7 is a clear, high-gloss gel top coat designed to resist yellowing, cloudiness, scratches, stains, and surface wear. Its balance of hardness and flexibility helps maintain a smooth, crystal-like finish without becoming overly rigid. Apply evenly over cured U Series color gel and cure for 60–120 seconds.

O8 — Matte Top Coat

O8 creates a soft, frosted matte finish without an oily shine. It is designed to resist stains and surface wear and can also be used as a base for watercolor-style nail art. Apply evenly over cured color gel and cure for 60–120 seconds. This gel is light-sensitive and should be stored away from direct light to prevent thickening or clumping.

O9 — Nail Tip Adhesive Gel

O9 is a clear adhesive gel for attaching full-cover nail tips. Its adjustable consistency gives you time to position the tip before curing, without the whitening or cloudiness associated with some liquid nail glues. Apply an appropriate amount inside the prepared tip, press it onto the buffed natural nail, and cure for 60 seconds while holding it in place.

O10 — Peel-Off Base Gel

O10 is a removable base gel made for short-term manicures and frequent color changes. The cured layer can be peeled away, reducing the need for acetone soaking or extensive e-file removal. Clean the nail thoroughly, apply the base gel directly, and cure for 30–60 seconds.

O11 — Air-Dry Peel-Off Base Coat

O11 is an air-dry practice product for beginners working on natural nails. It creates a removable layer beneath the design so the completed practice manicure can be peeled away as one piece. Apply directly to a clean, oil-free nail and allow it to air-dry naturally. No lamp is required.

O12 — Chrome Powder Top Coat

O12 is a clear gel developed for chrome and mirror powder application. Once cured, its smooth surface accepts chrome powder directly. It can also be applied over the powder to help seal and encapsulate the finished effect without changing its color. Apply, cure for 60 seconds, rub in the powder, then seal and cure again as needed.

O13 — Rhinestone Sealing Top Coat

O13 is a clear, thicker top gel for sealing the edges of rhinestones and other nail decorations. Its controlled consistency works with a detail brush and stays where it is placed, helping reinforce embellishments without flooding the surrounding area. It can also be used for French tip line work. Apply around secured decorations and cure for 60–120 seconds.

O14 — Quick Blooming Gel

O14 is a clear blooming gel for watercolor, marble, floral, and diffused color effects. Apply the gel, dot or draw the selected U Series color into the uncured layer, and allow approximately 10 seconds for the color to spread before curing. The formula is designed to create smooth, natural-looking edges without yellowing or cloudiness. Cure for 60 seconds.