Ex-Hallstar president admits trade secret breach, accepts 15-year ban

Robert Hu, former president of Hallstar Beauty & Personal Care, has admitted in the US District Court for the Northern District of Illinois that he breached confidentiality and non-compete agreements to help a rival firm. The admission resolves Hallstar's claims against him for misappropriation of trade secrets, breach of contract, tortious interference and breach of fiduciary duty.

The settlement contains admissions, not just money. Hu acknowledged using information and knowledge gained at Hallstar to help develop competing product lines — marketed as Proshield, Prolive, Proactive and Prosenteur — for Proscien while that business was being formed and grown. He also admitted building distributor relationships in China and South Korea on behalf of Proscien using contacts developed during his Hallstar tenure, and acknowledged that Hallstar suffered damages from his conduct.

What did Hu admit to?

The consent judgment spells out three concrete concessions:

• He used Hallstar-derived information to help develop the Proshield, Prolive, Proactive and Prosenteur product lines for Proscien.
• He worked on Proscien's behalf to build distributor relationships in China and South Korea using Hallstar-developed contacts.
• He accepted that Hallstar suffered damages as a result.

Hu joined Hallstar as R&D vice president in 2012. He rose to president and chief technology officer of Hallstar Beauty before departing in 2021. That near-decade of access sits at the centre of the case. The takeaway: the breach covered both formulation know-how and the distributor network in Asia.

What does the settlement forbid?

The terms reach well beyond a standard exit clause. Hu agreed not to accept employment with, hold an ownership interest in, or otherwise assist Proscien or its affiliates for 15 years. He also accepted a broader two-year non-compete covering the beauty products industry generally.

Enforcement crosses borders. The consent judgment is enforceable internationally through binding arbitration if any future violation occurs — a mechanism that matters for a case with distributor activity in China and South Korea.

What has Hallstar said?

A Hallstar spokeswoman said: "This judgment reflects a clear and formal acknowledgement of wrongdoing and holds those responsible accountable."

She added: "Protecting our confidential information, trade secrets, and the integrity, strength and continuity of the relationships we have built with distributors and customers around the world remains a top priority. Hallstar's decades-long track record of innovation is exceptional."

The spokeswoman also framed the case as a competitive differentiator: "Our established product development team, reliable global supply chain, regulatory and quality compliance expertise — these are advantages that an unproven or newer entrant cannot match. We will continue to take all appropriate action to defend our business."

In plain words: Hallstar is using the admission to draw a line between its compliance track record and a newer competitor.

Is the litigation finished?

No. Only the matter with Hu is resolved. Hallstar continues to pursue claims against Proscien itself and its founder, Jean-Claude Pierre, connected to the same underlying conduct, and the company states it intends to see that litigation through to its conclusion.

There is also a second front in France. In November 2025, a French court ruled in Hallstar's favour in a separate case against Proscien concerning misleading commercial practices and non-compliance of Proscien's website with certain French regulations.

Why does this matter for the trade?

For suppliers and formulators, the case signals that non-compete and confidentiality agreements held by US specialty ingredient houses can carry real teeth — including multi-year bans with international arbitral enforcement. For buyers and distributors, especially those in Asia approached by newer entrants with portfolios resembling established lines, it flags provenance questions around product ranges marketed under the Proshield, Prolive, Proactive and Prosenteur names while litigation against Proscien remains live.

The next data point to watch: the outcome of Hallstar's ongoing claims against Proscien and Jean-Claude Pierre, where the admissions secured from Hu will likely anchor the evidence.