Acquisition Economics at Lumen Skin

First-order contribution is $48 × 70% = $33.60. For repeat contribution, assume the 22% repeat rate applies to customers and that repeat buyers place 2.4 orders in the year. Expected repeat orders per acquired customer are 0.22 × 2.4 = 0.528. Repeat contribution is 0.528 × $33.60 ≈ $17.74. Twelve-month contribution per acquired customer is about $33.60 + $17.74 = $51.34. At a $61 CAC, LTV/CAC ≈ 0.84, which is below 1.0. Even before overhead, acquisition is losing money on a 12-month view. Payback is also poor: the first order contributes only $33.60, so Lumen does not recover CAC on the first purchase; it needs repeat orders to break even, and the repeat rate is too low to do that quickly. The implication is that scaling paid acquisition at the current CAC destroys value. Lumen must improve retention, raise AOV or margin, or lower CAC before spending the full $3 million. A higher lifetime horizon could change the ratio, but the 12-month evidence is a warning, not a green light.

The influencer campaign generates 30 million impressions × 0.4% click-through = 120,000 clicks. If the site converts 2% of clicks, that is 2,400 customers; at $250,000, CAC is about $104, far above the current $61. At a 4% conversion rate, it is 4,800 customers and CAC ≈ $52, which is better but still assumes strong conversion from an audience that is 60% outside the target. Contribution at $52 CAC is $51.34 − $52 ≈ negative, so even the optimistic case barely breaks even before overhead. The retail offer is different: 35% margin means Lumen receives 65% of retail revenue, but the $400,000 trade promotion is a fixed cost. If the 200 stores generate, say, $3 million in retail sales, Lumen's contribution before promotion is $3 million × 65% × 70%? Careful: gross margin is already 70% of Lumen's revenue; if retailer margin is 35%, Lumen's net revenue is 65% of retail sales, and product contribution is 70% of that, or 45.5% of retail sales. On $3 million, that is $1.365 million, less $400,000 promotion = $965,000. The retail route can be defensible if sell-through is strong, but it risks price pressure and brand dilution. The influencer campaign is weaker on unit economics and audience fit. Neither should be scaled without a test.

Do not split the budget evenly by habit. Allocate roughly 60–70% to performance channels only where CAC can be held near or below the 12-month contribution threshold, 15–20% to retention and repeat-purchase programs, and 10–15% to a tightly targeted creator test, not a broad lifestyle campaign. The creator test should use a clinical-adjacent creator, a unique code, and a holdout group; success means CAC at or below $45–$50 and a repeat rate above 25%, not impressions. Use the retailer offer only as a limited pilot in 20–40 stores with sell-through and margin thresholds, not 200 stores at once. Measurement should track contribution after acquisition cost, 60-day repeat rate, AOV, return rate, and brand-search lift. Protect positioning by avoiding sitewide discounts and by requiring creator claims to be substantiated. The judgement is that Lumen's problem is unit economics and retention, not awareness; spending $3 million on reach before fixing LTV/CAC would amplify a losing model.