Tini Lux
Scaling a hypoallergenic jewelry brand on Amazon
Services
amazon
paid media
retention marketing
Overview
Tini Lux creates irritation-free jewelry for people with sensitive skin — a niche with passionate customers, strong reviews, and high repurchase rates. After four years of steady growth, the brand's Amazon advertising performance had plateaued against rising platform costs. Tini Lux partnered with Darkroom to rebuild its marketplace strategy around operational precision and data-driven ad management.
Outcomes
57%
Increase in topline Amazon sales
52%
Increase in ad sales
Strong product, weakening economics
Tini Lux had built what most Amazon brands struggle to earn, genuine customer loyalty. Titanium earrings that don't irritate sensitive skin created a product with high reviews and natural repurchase behavior. But the brand's advertising performance wasn't keeping pace with rising platform costs. Ad spend was producing diminishing returns, inventory management lacked visibility into stock-out risks, and there was no system connecting sales trends to budget allocation decisions in real time. Darkroom identified that the gap wasn't creative or product-market fit - it was operational. Tini Lux needed automated performance tracking, inventory discipline, and ad management precise enough to scale spend without sacrificing efficiency.
Systems-first optimization that compounded
Darkroom partnered with Tini Lux to build the operational infrastructure behind the storefront, rolling out an automated week-over-week performance dashboard covering brand, ad, and product-level KPIs, and introducing an inventory tracking system that gave the team weekly visibility into stock levels, fulfillment lead times, and reorder triggers.
On the advertising side, Darkroom refined budget allocation using real-time efficiency metrics, shifted spend toward the highest-converting titanium earring and hoop SKUs, and maintained disciplined ACOS through Prime Day and peak seasonal periods. The compound effect of better data, better inventory management, and better ad precision delivered a 57% increase in topline sales and a 52% increase in ad sales - proof that for a bootstrapped brand with a strong product, the biggest unlock isn't more spend, it's smarter systems.
