Sea and Flo Menstrual Cup

9.9
Sea and Flo Menstrual Cup
Sea and Flo Menstrual Cup
Comfortable and secure fit
Black silicone doesn’t stain
Easy to insert and remove
Clear sizing guidance
Reusable and cost-effective
Female-led company

Let’s talk about the unsung hero of my bathroom cabinet: the Menstrual Cup. Specifically, the Sea and Flo menstrual cup is a product that has genuinely changed the way I experience my cycle. I’ve tried my fair share of reusable period products, and I don’t hand out praise lightly. But this one? She earned it.

Ladies hand holding a Sea & Flow Menstrual Cup

Comfort & Fit

Comfort is always my number one priority with any Menstrual Cup. If I can feel it all day, we have a problem. Thankfully, the Sea and Flo cup passes the “forget it’s there” test with flying colours.

Once inserted correctly, it sits securely without any noticeable pressure or awkward awareness. No poking. No shifting. No mysterious discomfort that makes you question all your life choices. It moves naturally with my body whether I’m working out, sitting at my desk for hours, or flopping dramatically onto the sofa after a long day.

The stem design deserves a special mention. It’s subtle and thoughtfully shaped, so there’s no irritation or scratchy feeling. That detail alone tells me this wasn’t rushed to market. It feels designed by people who actually use a Menstrual Cup themselves and that makes a difference.

Sizing

Choosing the right Menstrual Cup size can feel weirdly intimidating, but Sea and Flo make it refreshingly simple. Their website offers clear guidance, which takes away that “what if I pick wrong?” anxiety.

The cup holds a generous volume without feeling bulky. That’s a delicate balance you want enough capacity to avoid constant emptying, but not something that feels like you’ve smuggled a thimble-sized bucket into your body. This one gets it right.

It feels secure, reliable, and supportive without being intrusive. If you’re active (or just busy and not interested in bathroom breaks every two hours), this size and capacity combo is a dream.

3 different sizes of Sea & Flow cups

Functionality

Now for the big question: does it actually work?

Short answer: yes. Brilliantly.

The seal is reliable and consistent. Even on heavier days, I haven’t experienced leaks when it’s inserted properly. That’s huge. Confidence during your period is priceless, and a dependable Menstrual Cup gives you exactly that.

Removal is straightforward and doesn’t feel like an athletic event. If you’ve ever wrestled with a cup that refuses to break suction, you know how important that is.

And can we talk about the black colour? Genius. Absolute genius. Unlike lighter cups that start looking… well… well-loved after a few cycles, this one stays looking clean and fresh. No staining drama. It’s practical and aesthetically smart.

The medical grade silicone feels high quality is soft yet structured, easy to clean, and clearly durable. This isn’t flimsy or cheap material. It’s built to last.

I also love supporting a female founded company that clearly understands the real life needs of people using a Menstrual Cup. There’s intention behind the design, and you can feel it.

Value

Let’s get into numbers. A Menstrual Cup is already one of the smartest financial decisions you can make for your cycle. Compared to buying tampons or pads month after month, it pays for itself quickly.

The Sea and Flo cup is excellent value for what you get. The quality of the silicone, the thoughtful design, and the durability justify the price point. This isn’t something you replace every few months and it’s an investment.

And beyond money, there’s environmental value. Switching to a reusable Menstrual Cup dramatically reduces waste. If sustainability matters to you (and honestly, it should), this feels like a small change with a meaningful impact.

Supporting a female-led business adds another layer of value for me. It feels good to invest in a product created by people who genuinely care about women’s health, sustainability, and comfort not just profit margins.

Recommend

Would I recommend the Sea and Flo Menstrual Cup?

Absolutely. Without hesitation.

It’s comfortable. It’s functional. It’s thoughtfully designed. It performs consistently cycle after cycle. The black colour prevents staining, the fit feels secure, and the seal is reliable.

If you’re new to using a Menstrual Cup and feeling unsure, this is a fantastic place to start. And if you’ve tried one before and it wasn’t quite right, this might just be your upgrade moment.

Switching to a cup can feel like a big step, but once you find the right one, you won’t look back. Trust me I’m never going back to disposables.

Final Verdict

The Sea and Flo Menstrual Cup is a standout in a crowded market. It combines comfort, reliable performance, smart design, and long term value in a way that feels both practical and empowering.

If you’re ready to make the switch or upgrade your current cup this one earns my warm, sassy, expert stamp of approval.

9.9 Total Score
A Game-Changer in Sustainable Period Care

The Sea and Flo menstrual cup is a high-quality, comfortable and practical option for anyone looking to switch to a reusable period product. It’s easy to use and performs reliably even on heavier days. The black silicone is a standout feature as it doesn’t stain over time, keeping it looking fresh. I love that it’s created by a female-led company that clearly understands women’s health needs. Overall, it’s a well-designed, dependable product that I would absolutely recommend.

Comfort & Fit
10.0
Sizing
10.0
Functionality
10.0
Value
9.5
Recommend
10.0
PROS
  • Comfortable and secure fit
  • Black silicone doesn’t stain
  • Easy to insert and remove
  • Clear sizing guidance
  • Reusable and cost-effective
  • Female-led company
CONS
  • May take a couple of cycles to feel fully confident with insertion and removal
  • Upfront cost is higher than disposable products
  • Not ideal if you prefer single-use menstrual products
  • Requires access to washing/sterilising facilities for cleaning (although they give guidance for use when you're out and about)
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Gemma Richardson - Women’s Health Physio
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