Nail polish thinner is a solvent blend that helps bring thick, goopy polish back to a smoother, brushable consistency. Over time, polish can thicken as solvents evaporate; a thinner can replenish what’s lost without stripping color.

• What it’s for: Refreshing traditional nail lacquer that’s dragging or stringing.
• Not the same as remover: Remover breaks polish down to take it off; thinner restores flow.
• Gel note: For UV/LED gel formulas, use a gel-specific thinner only.

Use a small amount, mix gently, and test on a swatch before doing a full manicure. Results can vary by formula, so always follow the product’s directions. You can browse both lacquer and gel thinners in our Nail Care section.

Use a dedicated nail polish thinner for traditional lacquer, and a gel polish thinner for UV/LED gel formulas. These are designed to adjust viscosity without dulling shine or altering color.

• Avoid: Nail polish remover, pure acetone, alcohol, or water—they can break down the formula and affect wear.
• How to apply: Add 1–2 drops, close the bottle, roll gently between your palms, and test. Repeat in tiny increments as needed.
• When to stop: If polish separates, won’t blend, or smells off, it may be time to replace it.

Always follow label instructions and work in a well‑ventilated area. You’ll find both lacquer and gel thinners in our Nail Care assortment online.

Match the thinner to your polish type, then pick features that fit your routine.

• Compatibility: Look for “nail lacquer thinner” for regular polishes and “gel polish thinner” for UV/LED gels. Check the product description for intended use.
• Control: A dropper top or precision nozzle can make it easier to add small amounts.
• Size: Smaller bottles are great for occasional touch‑ups; larger sizes suit bigger collections.
• Sensitivity: If you’re odor‑sensitive, seek formulas that note lower odor.

Review product details and customer feedback on Walmart.com, and consider starting with a smaller bottle to see how it works with your polishes. Availability for pickup or delivery may vary by location.

First, confirm your top coat type. For traditional lacquer top coats, a nail polish thinner can help. For UV/LED gel top coats, use a gel‑specific thinner only.

1. Add 1–2 drops of the compatible thinner.
2. Close the bottle and roll gently to mix—avoid vigorous shaking.
3. Test on a swatch or a spare tip to check gloss and smoothness.
4. Repeat in tiny increments if needed, stopping before it becomes runny.

Avoid using remover, alcohol, or water, which can affect adhesion and shine. Always follow the thinner’s directions and allow proper drying or curing per your top coat’s instructions. Results can vary by formula.

A few small habits can help your polish stay smooth longer.

• Cap care: Wipe the bottle neck after use and close tightly to limit evaporation.
• Storage: Keep bottles upright in a cool, dry place away from heat and direct sunlight.
• Mix gently: Roll between your palms instead of shaking hard to avoid bubbles.
• Work quickly: Don’t leave the bottle open longer than necessary while painting.
• Gel tip: Store gel polishes away from UV/LED light sources and cap immediately between coats.

If a favorite shade starts to thicken, adding a small amount of a compatible thinner can help restore flow. Always follow product directions, and test first, since results can vary.