Case Study: Razors4U achieves 267% conversion lift, 50% lower CPA and 300% customer growth with Skai

Skai™ and Lab Sharpen Paid Search for Razors4U

Razors4U is a UK–Europe e‑commerce startup selling razor blades and subscription deliveries that needed to educate shoppers, raise awareness and improve paid‑search performance: it started with a 3% conversion rate and a high £12 CPA and set targets to increase conversions by 50%, cut CPA to £8, and grow the customer base by 70%. Razors4U engaged agency Lab and the Skai Infinity Suite to redesign its search strategy and campaign execution.

Lab combined psychological modeling and linguistic ad copy with Skai tools (Portfolio Optimization, Campaign Mirroring, Halogen predictive modeling, Infinity Pixel and Reporting Suite) to optimize bids, attribution and reporting in real time. The Skai‑powered campaign lifted conversion to 8% (a 267% increase), cut CPA 50% to £6, grew the customer base 300% (subscriptions more than doubled), and after 12 months conversion hovered near 9% with CPA under £4, enabling Razors4U to scale spend and enter new markets.

Razors4U

Christian Boletta

Managing Director and Co-Founder