Guide

Eleven years ago, when I started Ljvogues, the OEKO-TEX Class I standard was the goal. Today we have the certificate. Here's why Class I specifically — not the standard adult class — was the only standard that made sense for period underwear.On July 8, 2026, Hohenstein Laboratories in Germany issued

Bookmark this page or copy the checklist into your supplier evaluation document.I'm Ocean Yang, founder of Ljvogues. I've run an 8,000m² period underwear factory in Shenzhen for 11 years, working with 500+ brands across 40+ countries, and before that I spent 8 years at Alibaba watching buyers naviga

Analysts put the period underwear market anywhere from $200M to $1.2B in 2026. Ljvogues CEO Ocean Yang cuts through the variance with 11 years of first-hand inquiry data, order trends, and compliance shifts.

8 years inside Alibaba, 11 years running a factory. Ljvogues CEO Ocean Yang explains the 3 methods to tell a real period underwear manufacturer from a trading company — before you place your first order.

"We're PFAS-free" isn't enough. Ljvogues CEO Ocean Yang shares the 3-layer verification framework — finished garment SGS reports, upstream declarations, batch tracking — that separates a real claim from a marketing statement.

Most brands that come to me about entering the period underwear category make the same mistake before they even send a sample request: they treat it like adding another SKU. It isn't. Period underwear is the most technically demanding intimate garment a woman will wear, and the cost of getting it wr

The global swimwear market is on track to reach USD 34.12 billion by 2034 at 5.08% CAGR; period panties are growing at 20.5% CAGR — a period swimwear OEM extension lets your brand capture both curves at once.

Table of ContentsTogglePart 1: Period Swimwear MOQ — Industry Ranges ExplainedTable 1: Period Swimwear MOQ Tiers by Supplier TypePart 2: Period Swimwear Cost Breakdown — Full Unit EconomicsTable 2: Period Swimwear Unit Cost Breakdown (FOB Shenzhen, 300–500 Unit Run)Part 3: Period Swimwear Lead Times