How we know

The launch is on record as L'Oreal Paris's first ever mature creator-led campaign, ten creators aged 45 and over across Sweden, Denmark, Norway and Finland, the oldest 84.

Who says so	Mobile Marketing Magazine, Agility PR and CEW UK, all outside the agency. They confirm the ten creators and the ages, and report none of the performance figures, so do not quote those. Read it
A second source	Mobile Marketing Magazine independently confirms the 10 mature influencers aged 45 and over, Anita at 84, the Nordics launch and the reels/static/story format, but reports no impressions, engagement rate, or percent-over-goal figures.
What the agency was asked to do	Not published. The quote on the page is brand boilerplate, not a brief.
How the agency was picked	Already a client, work handed to them
How that happened	Existing roster relationship at parent level, campaign assigned into it: No appointment story for this campaign. L'Oreal is a standing Billion Dollar Boy client, so this reads as work assigned inside an existing relationship rather than a selection. The campaign itself is well covered by trade press, which is unusual and helps.
How long it took	Not found for the appointment. The campaign ran on Instagram across Sweden, Denmark, Norway and Finland.
Recorded as	L'Oréal Paris (Age Perfect Rosy Glow)

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Every case here carries the one link that proves it, and names who said it. Where that is the agency describing its own win, the card says so rather than hiding it. Cases where nobody ever documented a reason are not on this page at all. Brought to you by Influencer Advisory, your influencer marketing partner for supplement, health and beverage brands.