Saalt Cup Small or Regular: Which Size Should You Buy?

The small cup looks more manageable. The regular cup looks like it might get you through a heavier day. Then you notice a Soft version, a sizing quiz, and somebody online saying the opposite of what the last person said.

Here’s the short answer. Choose by fit and flow together. Saalt’s current support guidance points toward Small for a low-to-medium cervix and Regular for a medium-to-high cervix. Regular has greater capacity, but that doesn’t make it the better purchase if it isn’t comfortable. 2

“Regular” names a size. “Soft” names a firmness option. Sorting out those two choices first makes the shelf easier to read.

What are you buying?

The original Saalt Cup is a reusable internal period product made from silicone. It collects menstrual flow instead of absorbing it. The current single-cup listing includes a carry bag and displayed $32 when checked on October 10, 2026. 1

This review focuses on the original cup in Small and Regular. A Saalt disc is a different product with different placement and removal instructions. Don’t use a disc tutorial to learn this cup.

The meaningful cost question isn’t whether a reusable cup can theoretically last for years. It’s whether you’ll be comfortable using and caring for the one you buy.

How different are Small and Regular?

Saalt’s support table gives these measurements. The body and stem together measure 70 mm for both sizes, but their proportions differ. 2

Measurement	Small	Regular
Cup body length	47 mm	52 mm
Diameter	41 mm	46 mm
Stem length	23 mm	18 mm
Total length	70 mm	70 mm

The product size chart lists 25 mL capacity for Small and 30 mL for Regular. 1

That means “small” isn’t simply a shorter total product. It has a narrower, shorter body and a longer stem. Compare the shape, not just the word on the box.

Which size makes sense for your cervix height?

The manufacturer’s support guidance associates Small with a low-to-medium cervix and Regular with a medium-to-high cervix. It also notes that fit can change across a cycle. 2

Use that as a starting point rather than a guaranteed fit. If you don’t know your cervix height or aren’t comfortable checking, ask the brand’s support team or a healthcare professional for help with the choice.

Our buying judgment: don’t choose from your height, trouser size, or a stranger’s photograph. The cup has to fit internally; the details relevant to that fit deserve more weight than the color you like.

Is Regular always better for a heavy flow?

The extra capacity may be useful, but it doesn’t promise a longer comfortable interval for every person. You may need to empty either cup much sooner than the advertised maximum.

Saalt’s US instructions require emptying and cleaning at least every 12 hours, with an eight-hour limit noted for Australia. 3 Follow the instructions for your actual product and market, and empty earlier when needed.

Plan around your heavier days rather than assuming you can leave home for the whole day without checking. Greater capacity isn’t permission to ignore fit, discomfort, or an overflowing cup.

Original or Soft?

Saalt describes the original firmness as helping the cup open after insertion. 1 It markets the Soft version for people sensitive to pressure or uncomfortable with firmer cups. 4

That is the manufacturer’s intended distinction, not a promise that Soft will eliminate bladder symptoms or cramps. Nor does it prove that every beginner should choose the firmer version.

If you’ve had pain with internal products, discuss that before buying another one. A softer purchase isn’t a diagnosis or a substitute for getting persistent discomfort checked.

Check the full product name in the basket. Small Original, Regular Original, Small Soft, and Regular Soft aren’t four labels for the same cup.

Will a cup stop leaks?

A 2019 systematic review found similar or lower leakage with cups in the four studies directly comparing them with pads or tampons. It also found that learning commonly took several cycles, and much of the included research was of limited quality. 5

That is useful evidence about the category. It doesn’t establish that Saalt outperforms every other brand or that your first attempt will be leak-free.

Saalt’s troubleshooting discusses position, a cup that hasn’t opened fully, blocked air holes, and overflowing. 9 A leak doesn’t automatically mean you should order the larger size.

Consider backup protection while learning. It can make an unfamiliar routine less stressful without turning every spot into a verdict on whether cups are for you.

Is removal difficult?

Removal deserves attention before you buy. Saalt says the stem is a guide, not a pull tab: locate the base and pinch it to release the seal before gently removing the cup. 3

Think about whether you’re comfortable reaching inside, handling menstrual blood, and allowing time to learn. Those aren’t trivial details hidden behind the reusable-product savings.

Read the complete instructions before insertion. If you can’t remove a cup, seek prompt medical assistance rather than repeatedly pulling hard or waiting for an email reply. Don’t continue painful attempts or use improvised tools.

Can you use it with an IUD?

Ask the clinician who manages your IUD before choosing a cup. The manufacturer’s instructions also say to check with your doctor first. 3

A 2024 secondary analysis of a trial comparing two copper IUDs found increased expulsion odds with cup use for one IUD type, but not the other. Accidental self-removal was more frequent among cup users with both types. Participants were randomized to IUD type, not to cup use. 6

That doesn’t give a personal risk estimate or a Saalt-specific result. It does make an unqualified “cups are fine with every IUD” answer inappropriate.

Ask about your exact IUD and removal precautions. Breaking the seal is important; don’t treat it as proof that displacement risk disappears.

What cleaning routine are you agreeing to?

You need access to clean hands, water, and time to care for the cup. Saalt’s directions cover sanitizing before first use and between cycles, washing during use, and drying for breathable storage. Replace a damaged cup. 3

Read those instructions alongside your workday and travel plans. A shared bathroom or a day away from reliable facilities can change how convenient a cup feels.

Don’t assume you need every accessory sold beside it. Understand the approved care methods first, then decide what would make them practical for you. Follow the supplied directions rather than an improvised cleaning recipe.

What about toxic shock syndrome?

NHS describes toxic shock syndrome as rare but life-threatening and says it can occur with menstrual cups as well as tampons. Symptoms can develop quickly. 7

If you develop fever, a rough rash, flu-like illness, vomiting, dizziness, or confusion while using a cup, remove it and seek urgent medical help. Tell the clinician about the cup. Severe illness, breathing difficulty, or collapse calls for emergency help. 7

Don’t buy on a claim that cups make this risk impossible. Follow hygiene and wear-time instructions, and ask a clinician before choosing an internal product if you’ve had TSS previously.

Does the guarantee refund an opened cup?

Read the terms before counting on getting your money back. Saalt’s current 90-day policy distinguishes refunds on unused items from store credit on opened items. For website purchases, return and exchange shipping depend on whether you selected its optional domestic protection and free-return-shipping package. 8

A retailer may have different terms. Check the seller you plan to use, including eligibility, return postage, and how an opened cup is handled.

That distinction can change the real cost of choosing a size that doesn’t work for you.

Is Saalt Cup worth buying?

It is worth considering if you want a reusable internal period product, can manage the cleaning routine, and are willing to learn insertion and removal. Start with the sizing guidance, then compare firmness separately.

Pause if internal products are painful, removal worries make the routine unmanageable, or an IUD question remains unresolved. Pads or another suitable period product can be a sensible choice; switching to a cup isn’t a test you have to pass.

The related Girl Playbook is Period, Handled. A useful period routine fits your body and your day, including the days when neither follows the plan.