Why Celebrities Launch Beauty Brands — The Equity Math Behind the Trend

The Working Definition

Equity math: the lifetime present value of an owned-brand exit vs the present value of endorsement income.

The working definition above is the one Starpower uses inside partnership conversations and investor briefings. Where the published academic or industry literature uses a slightly different definition, we note the divergence and explain which one we prefer in practice and why.

The Worked Example

$20M tour net (one-time) vs. 25% equity in a $1B exit ($250M) — the brand wins by 12.5x even before tax.

Worked examples are essential because the underlying math is rarely intuitive on first encounter. The numbers in the example above use realistic comparable-deal inputs but are simplified for clarity. Real-world transactions have many more moving parts, and practitioners modeling actual deals should rebuild the worked example with the inputs specific to their case.

Why the Math Surprises People

Three structural reasons make this calculation counter-intuitive on first encounter. First, the time-value-of-money effect is larger than people expect when discount rates are low and time horizons are long. Second, the tax treatment differs across jurisdictions and across asset classes in ways that compress or expand the after-tax outcome by 20-40%. Third, the optionality value of a celebrity-equity position is rarely modeled, even though it can dominate the headline number in scenarios where the brand grows non-linearly.

Each of those three effects matters in isolation, and they compound in combination. Practitioners who model deals using only the headline multiple miss the real economics by margins that can swing a deal go/no-go.

How Practitioners Use This in Real Deals

In an actual partnership conversation, this concept enters the room in two places. It enters the first meeting through the founder's pitch, where the worked example acts as a credibility anchor — a founder who can explain the math in two minutes signals discipline and seriousness. It enters the second meeting through the deal structuring, where the assumptions inside the worked example map directly onto the term-sheet provisions that need to be negotiated.

Founders who walk in fluent in this calculation close meetings faster. Celebrity teams who recognize the calculation when a founder presents it tend to move faster too — because they have seen it deployed by other founders before.

The Three Scenarios Worth Modeling

Practitioners should always model at least three scenarios when applying this concept. The base case uses the most-likely inputs and represents the central scenario for negotiation. The bull case uses the upside inputs and frames the maximum value the structure can deliver to each party. The bear case uses the downside inputs and stress-tests whether the structure still works for both parties when things go wrong.

Most term sheets are negotiated against a single implied scenario. Deals that close cleanly tend to be the ones where all three scenarios were explicitly walked through with both parties in the room.

• Base case: Most-likely inputs, central scenario for negotiation.
• Bull case: Upside inputs, frames maximum-value scenario for each party.
• Bear case: Downside inputs, stress-tests whether structure works when things go wrong.

Common Pitfalls

Five common pitfalls trip up practitioners using this concept for the first time. Conflating accounting valuation with deal valuation, where the GAAP number and the strategic-acquirer number diverge by 2-3x. Assuming linear growth where the actual trajectory is non-linear in either direction. Ignoring tax friction, which can absorb 30-40% of the headline number. Underestimating dilution from subsequent rounds. And modeling exit at the headline price without netting out preference stacks and option pools.

How This Concept Is Evolving

The concept itself is not static. Three forces are shifting how practitioners apply it in 2026. The first is the rise of secondary-market liquidity for celebrity-founded brands, which changes the optionality value calculation. The second is the regulatory tightening around influencer-disclosure and FTC enforcement, which adds a new risk-discount layer. The third is the increasing sophistication of celebrity-team legal counsel, which means the structural protections we describe are now table stakes rather than negotiable extras.

What to Do With This Information

Founders pitching celebrities should rehearse the worked example until they can deliver it conversationally in two minutes. Investors evaluating celebrity-founded brands should rebuild the worked example with their own inputs as part of standard diligence. Celebrity team principals should ask any pitching founder to walk them through this calculation, because the answer reveals whether the founder has done structural work or just packaging work.