What to Stock for a Gel and Extension Menu: A Restock Checklist for Salons and Nail Schools

Every salon owner and school director knows the two failure modes. The first is running out of something mid-day: the clear builder gel is empty, the nude cover base is gone, and a client is already in the chair. The second is the opposite: shelves full of shades nobody books, products drifting past their best, and cash tied up in stock that doesn't move.

A good restock plan sits between those two. It starts from your menu, tracks what you actually use, and gives you a reorder rhythm you can run in thirty minutes a month. This checklist walks through the core categories for a gel and extension menu, how to decide how much to order, what changes for a school, and how to handle storage and new product lines.

Start With Your Menu, Not the Catalog

The most common ordering mistake is shopping from a catalog and picking what looks good. Start from the other end. List every service you sell, then list what each one uses.

Once you see the table, you notice that a handful of products appear in nearly every row. Rubber base, prep products, and top coat are used in everything. These are your "never run out" items. Everything else depends on your menu mix.

The Core Checklist by Category

1. Prep and Cleanup

Prep decides how long a service lasts, so don't stretch it. Our starter kit guide covers the prep essentials most beginner kits leave out, and it's useful for a school to share with new students.

• Dehydrator, and primer if your system uses one

• Cleanser and lint-free wipes

• Files and buffers in the grits you use

• Cuticle oil and cuticle tools

• Dust brushes

Restock signal: wipes and files go fastest. Reorder when you're down to roughly two weeks of supply.

2. Bases

Bases are the foundation of every service, so carry more than one type if your menu includes overlays and extensions.

• Rubber base in a medium consistency for normal nails, and a firmer option for thin or problem-prone nails

• Cover bases in a core shade range: sheer nudes, soft pinks, milky tones, and a couple of shimmer options

• A reinforcing cover gel if you offer strengthening services

The base coats collection lets you compare consistencies and shade ranges across the main lines.

Restock signal: the rubber base bottle is your most-used liquid product. Treat it like fuel and reorder before the last bottle is opened.

3. Builder Gels and Polygel

• Clear builder gel, your workhorse for structure

• Shimmer builder gel, if you offer glow or encapsulated looks

• Natural-tone builders, which help with camouflage extensions

• Polygel in clear and a few natural tones, plus slip liquid

If you do a lot of extension work, build a small buffer of clear builder and clear polygel, since they're used in nearly every set. The builder gels collection shows the lines side by side.

Restock signal: clear products move fastest. Colored or shimmer options move with trends and are best ordered in smaller batches.

4. Forms

Forms are easy to overlook until you run out of a size in the middle of a full set.

• Dual forms in a full range of sizes and the shapes you use most

• Upper (adhesive) forms if you sculpt freehand or take custom requests

For a sense of what a dependable dual form looks like, see the WHY NOT NAILS Dual Forms. Check which sizes you run out of first, because those are your real bestsellers.

Restock signal: count by size, not total. A full box can still leave you short on the one size half your clients need.

5. Color

Your color wall is where overstock hides. Most clients rotate through a small set of favorites.

• A core group of neutrals, nudes, and soft pinks

• A few classic reds and deep tones

• Seasonal shades in small quantities

• Specialty finishes only if you do the design work that uses them

Restock signal: track the shades you reorder most often. The top ten usually account for most of the volume. Keep those in depth, and keep the rest shallow.

6. Top Coats

• A no-wipe top coat as your standard finish, which removes a step from every service

• A matte top coat if clients ask for it

• A base-safe top coat for specialty work, if you do it

Restock signal: top coat is used on every service, so it behaves like the rubber base. Keep a backup unopened bottle.

7. Consumables and Equipment

• Gloves, foil or wraps, and disposables

• Slip liquid and cleaning supplies

• Lamp bulbs or replacement lamps, which matter more than people think for curing quality. Our UV vs LED lamp guide on the blog explains what to check.

Restock signal: a failing lamp shows up as tacky or soft cures, not as an obvious breakdown. Check bulb condition on a schedule.

How Much to Order: A Simple Method

You don't need software. You need a notebook or a spreadsheet and thirty minutes a month.

Step 1: Track usage. For each product, note how many bottles or units you use in a month. Do this for two or three months and you'll see the pattern, including seasonal swings.

Step 2: Know your lead time. How long between ordering and receiving? If it's a week, you need at least a week of stock when you reorder.

Step 3: Set a reorder point. A simple formula:

Reorder point = (average weekly use × lead time in weeks) + safety buffer

An illustrative example. The numbers are invented to show the method. If you use four bottles of a base per month, that's one a week. With a one-week lead time and a one-bottle buffer, your reorder point is two bottles. When you open the second-to-last bottle, you reorder.

Step 4: Review monthly. Adjust the reorder points for seasons and changes in your menu. Wedding season, holidays, and back-to-school each shift what you use.

Step 5: Keep a "never out" list. Rubber base, top coat, clear builder, and the main prep products go on this list, with a higher buffer than everything else.

Salon-Specific Tips

Think per chair. If you add a station, your usage rises roughly in proportion. Plan the added stock before the new tech starts.

Let bestsellers set depth. Order your top shades and products in larger quantities and the long tail in small ones.

Match stock to your menu. If you launch a new service, such as a strengthening overlay or a polygel extension line, add its products at the same time, so the first clients aren't waiting for materials.

Use slow weeks to reset. Count stock, check dates, clean up the shelf, and place a planned order, instead of rushing a reorder on a busy day.

School-Specific Tips

Schools have different needs from salons. You're stocking for learning, not only for services.

Standardize the kit. Students learn faster when everyone uses the same products, since it removes variables when you troubleshoot. Choose one rubber base, one builder line, and one polygel line for the core curriculum.

Teach with what the salon uses. Students pick up habits from the materials in their hands. Matching school products to real salon products means they graduate already familiar with what works in a working environment.

Plan per student and per module. Calculate usage per student for each module, such as prep, gel polish, overlays, builder extensions, and polygel. Then multiply by class size and add a buffer for practice and mistakes.

Stock for models and practice. Practice hands, training tips, and extra forms get used up quickly in early modules.

Keep sanitary and disposable items ahead. These run out fastest in a busy class.

Give students a starting point. A clear kit list helps students buy what they need without overspending. Share the starter kit guide linked above as a reference when you design yours.

Storage and Shelf Life

Good stock management includes keeping what you buy in good condition.

• Store in a cool, dry place away from direct sunlight. Manufacturers typically recommend a temperature range, such as roughly 10 to 26°C (about 50 to 79°F), for gel polishes.

• Keep caps and bottle necks clean. Wipe them after each use so lids seal properly.

• Keep bottles away from lamp light. Don't leave open gel under the lamp or near a window.

• Roll, don't shake. Rolling a bottle between your palms redistributes pigment without adding air bubbles.

• Rotate stock. Use older bottles first, and note the date you open each one.

• Check before use. If a product has separated, thickened, or changed smell in a way that isn't normal for that product, set it aside and ask your supplier.

Adding a New Product Line Without Risk

Trying a new brand is part of running a business, and it's easier when you do it in stages.

1. Order a small first batch. Pick one base, one builder, or a few shades, not the whole line.

2. Test on yourself first. Check application, cure, and wear on your own hands.

3. Move to a few trusted clients. Track wear time over a full cycle and note any skin reaction.

4. Compare side by side. Put it next to your current product on different hands, where possible.

5. Ask for ingredient lists and data sheets. A trustworthy supplier will share them promptly.

6. Expand only after it proves itself. Then add depth, shades, and wholesale quantities.

Wholesale: How It Works for Salons, Schools, and Masters

If you buy regularly or in larger volumes, wholesale terms can change your margins. We offer favorable terms for salons, schools, and masters who purchase on a regular or bulk basis.

What to prepare: a rough list of the products you use most, how much you use per month, and how often you'd like to order. That lets us talk specifics instead of generalities.

What we can help with: matching products to your menu, suggesting a core range that fits your services, and building a repeat order list you can reorder from quickly.

To set up an account, use our contact page and tell us about your salon or school. Many products are also currently available at especially favorable prices, so it's a good time to review your list.

Common Restocking Mistakes

Ordering from the catalog, not the menu. You end up with products that don't match your services.

Overbuying shades. Deep color walls tie up cash. Keep depth on the top ten and keep the rest shallow.

Running out of "never out" items. A missing base or top coat stops every service. Keep a buffer.

Switching brands too fast. Changing everything at once makes it hard to see what's working. Move in stages.

Ignoring lamp condition. Weak lamps cause tacky cures that people blame on the product.

Not tracking usage. Without numbers, every reorder is a guess.

Forgetting storage. Good products still suffer in heat and sunlight.

Why We Can Help With This

We're not only suppliers. We run a salon, a school, and courses, and we use the products we sell every day, on clients and on models. That's why we understand how each base, gel, and top behaves in real work, in wear, in application, in speed, and in comfort for the tech. We select only brands and products that have been proven by thousands of masters, and we carry only what we can answer for.

In our own brands, including SOPHIÈ, we use premium raw materials chosen to meet U.S. market requirements. The formulas are HEMA-free and TPO-free, and the products are cruelty-free.

We also help with choosing. If you're unsure which consistency, shade range, or builder fits your menu, we can recommend based on how these materials work in practice, not just how they read on a label.

Frequently Asked Questions

How often should a salon restock gel products? Most salons do best with a regular monthly review and a planned order, plus a smaller top-up for fast-moving items. The right rhythm depends on your volume and your supplier's lead time.

How many shades of cover base or gel polish do I need? Start with a core group that covers sheer nudes, soft pinks, milky tones, and a few classic colors. Then add based on what clients actually ask for. Your reorder history will show which shades earn their shelf space.

What should a nail school stock for a first-year program? Standardize on a small number of product lines, and stock prep, rubber base, cover bases, builder gel, polygel, forms, top coat, and consumables. Calculate usage per student per module, and add a buffer for practice.

Is it better to buy from one brand or several? A matched system from one line gives predictable results, while a mixed kit lets you pick the best product per job. Many salons use one main line for bases and builders and add specialty products where needed. Whatever you choose, test compatibility before committing.

How do I know if a gel has gone bad? Signs include separation that won't mix back, unusual thickening, a changed smell, or a product that won't cure properly. If you're unsure, set it aside, and ask your supplier.

How do wholesale terms work? Terms depend on your purchase volume and how regularly you order. Contact us with a list of what you use and how often you buy, and we'll go through the options.

Do you offer help choosing products for a new salon or school? Yes. Tell us about your menu or curriculum and we'll suggest a core range based on how the materials perform in real work.

The Bottom Line

A good restock plan is simple: start from your menu, track what you use, set reorder points for the products you can't run out of, and keep the long tail lean. For schools, standardize the kit and teach with what works in a real salon. Do that, and you spend less time chasing missing bottles and more time on clients and students.