Colin Ngai

Case Studies

The strategy, the writing, and the numbers.

A closer look at the work — what the brand needed, what I wrote, and what it did once it hit the market. Click any case study to read the full PDF.

Launch Copy

Inno Supps

APEX Male Stack Launch

$23,521.03 on launch day

Inno Supps was launching a new male performance line (T-Drive™ APEX, Nitro Wood™ APEX, APEX Male Stack) into a category where they already had two best-selling product lines. The challenge: position APEX as the category leader without cannibalizing existing winners.

  • Broke down the supplement facts panel and mined clinical studies for compliant, differentiated claims (dual-pathway testosterone + blood flow).
  • Built the “Apex” identity around three archetypes: peak physical prowess, elite sexual performance, and unshakable mental edge.
  • Structured the LP around an escalating desire → proof → purchase arc, then ported the framework to email, SMS, ads, PR, and retail decks.
  • Drove $23,521.03 on launch day from email and SMS alone — no paid ads.
Email & Retention

Inno Supps

Reviving a Dormant Email Channel

$25K → $198K+ weekly revenue

Backend channels at Inno Supps were barely moving the needle — campaigns disappeared into promotions tabs, open rates were weak, and growth leaned hard on paid acquisition. I rebuilt the system as a research-driven, performance-obsessed engine.

  • Mined customer surveys, reviews, VIP Facebook groups, Quora, and Reddit for angles that actually resonated.
  • Ran weekend competitor research blitzes and used tools like Foreplay to surface unique mechanisms (e.g., Blue Zones longevity, GLP-1 × libido).
  • Weekly and monthly performance audits to double down on winning topics, offers, and designs.
  • Scaled weekly revenue from $25K into the $198K+ range from the email channel alone.
LinkedIn Ghostwriting

Profit Labs (Eli Rubel)

From $0 to $19,250 MRR in 60 Days

20+ sales calls · $19,250 MRR

Built a full-cycle LinkedIn content system for Eli Rubel’s new venture, Profit Labs — turning his existing audience into qualified pipeline for agency-owner bookkeeping and profitability services.

  • Pinpointed ICP pain points — bookkeeping gaps, hiring/firing decisions, profit forecasting — and built every post around them.
  • Monthly “building in public” recaps to show Profit Labs scaling in real time and reinforce credibility.
  • Diversified formats: misconception-busters, list breakdowns, lead magnets, webinar announcements, client-win stories.
  • Booked 20+ sales calls and closed $19,250 MRR in 60 days; grew the agency from solo founder to 6.
AI Prompting + Content

Streamline AI (Kathy Zhu)

Scaling a Legal Founder on LinkedIn

119,616 impressions · +431 followers in 60 days

Worked with Kathy Zhu, founder of Streamline AI (ex-DoorDash AGC), to grow her LinkedIn presence and reach in-house legal decision-makers at mid-market and enterprise companies.

  • Bi-weekly founder content interviews translated into top, middle, and bottom-of-funnel post topics.
  • Built a Claude project per client, fed with 20 top-performing posts, interview transcripts, deep-research reports, and ICP docs.
  • Engineered detailed prompts with role, structure, ICP pains, and guardrails against typical AI tells (rhetorical questions, “it’s not X, it’s Y”).
  • Heavy human editing pass + final AI critique to sharpen hooks, flow, and loop closure.
  • All-time high of 46,751 weekly impressions and 413 new followers in two months.