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Trysequel is an American online store selling the Sequel Spiral Tampon, a patented redesign of a product that has remained largely unchanged since 1931. The shop was founded by two Stanford engineers and athletes who set out to address functional shortcomings in conventional tampon design.

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At a glance

About Trysequel

Main product
Sequel Spiral Tampons (Regular, Super, Combo)
Price per box
$19.99
Free shipping from
$35
Subscription available
Yes, Subscribe & Save gives 10% off with monthly delivery
Certifications
FDA 510(k) cleared, OEKO-TEX Standard 100, patented design
Target audience
Women, athletes, active lifestyle
Founded by
Amanda Calabrese and Greta Meyer, Stanford engineers
Customer service
Sequel targets active women and athletes who have experienced leaks or discomfort with traditional tampons and are looking for a product built around performance and reliability. The brand positions itself in the premium segment, with boxes priced at $19.99, and emphasises engineering credentials rather than lifestyle marketing. Its core differentiator is a patented helical channel that is designed to promote even fluid absorption across the full tampon body, in contrast to the vertical channels found in conventional designs. Certifications including FDA 510(k) clearance and OEKO-TEX Standard 100 form a central part of the brand's credibility claim.
September 2026

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Free shipping on orders of $35 or more, with no subscription required to qualify.
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Recent

Trysequel in the news

Recent updates and background about Trysequel, summarised in our own words.

Trysequel

The Sequel Spiral Tampon: a patented redesign nearly 100 years in the making

The conventional tampon design dates back to 1931 and has seen little change since. Sequel introduced a patented helical channel intended to promote even absorption and reduce bypass leaks before the tampon reaches full capacity.

Trysequel

Founded by athletes: how Amanda Calabrese and Greta Meyer built Sequel

Two Stanford-trained engineers and athletes, frustrated by consistent product failures during sport, spent years in R&D to develop a tampon that could withstand a full range of motion. The result is an FDA cleared, patented product sold under the Sequel brand.

Trysequel

What OEKO-TEX Standard 100 certification means for Sequel customers

Every component of the Sequel Spiral Tampon has been independently tested and certified to OEKO-TEX Standard 100, which verifies the absence of harmful substances. The product is also synthetic dye-free.

Summaries by Image Review based on publicly available sources and our own editing. External links may contain affiliate links.

Frequently asked questions

What others ask about Trysequel

Answers to the most common questions, based on search behaviour and our own research.

Is Trysequel a reliable webshop?

Trysequel sells an FDA 510(k) cleared Class 2 medical device, which represents a regulated safety and efficacy standard. The product is also OEKO-TEX Standard 100 certified, meaning every component is independently tested for harmful substances.

Do I have to subscribe to order from Trysequel?

No subscription is required. Customers can buy a single box and try the product. A Subscribe & Save option is available for those who want 10% off and automatic monthly delivery, and it can be cancelled at any time.

What is the return policy of Trysequel?

If the product does not work for a customer, Trysequel asks them to contact the support team directly at [email protected] to arrange a resolution.

Does Trysequel offer free shipping?

Yes, Trysequel offers free shipping on orders of $35 or more. No subscription is needed to qualify for this threshold.

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