<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Performance Lab — Supplement Label Index</title><link>https://supplementlabelindex.com/brands/performance-lab/</link><atom:link href="https://supplementlabelindex.com/brands/performance-lab/feed.xml" rel="self" type="application/rss+xml"/><description>New labels and FDA enforcement records for Performance Lab, from the NIH DSLD and openFDA.</description><language>en-us</language><lastBuildDate>Tue, 03 Nov 2026 13:04:49 GMT</lastBuildDate><item><title>New label: Zinc</title><link>https://supplementlabelindex.com/products/335012/</link><guid isPermaLink="true">https://supplementlabelindex.com/products/335012/</guid><pubDate>Thu, 25 Sep 2025 00:00:00 GMT</pubDate><description>Zinc was entered into the NIH DSLD on 2025-09-25.</description></item><item><title>New label: Pre Lab Pro Natural Berry Flavor</title><link>https://supplementlabelindex.com/products/335009/</link><guid 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