Paid Media World
Peak Conv. Rate
54.3%
Lowest CPA
£1.05
Blended ROAS
2.84x
Audited Pacing
13 Wks

Nutrabytes: 54.3% Peak CVR & £1.05 CPA

Audited performance marketing case study detailing how Paid Media World scaled Nutrabytes UK supplement and marine collagen e-commerce sales to 54.3% peak conve

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By Subhranil Naskar
|October 15, 2026|6 min read|Fact-Checked & Audited
Nutrabytes
D2C E-Commerce Growth Teardown • Nutritional Supplements & Marine Collagen

How Paid Media World scaled Nutrabytes—a premium UK nutrition brand specializing in hydrolyzed marine collagen and high-purity vitamins—to a 54.3% peak conversion rate, a £1.05 cost-per-sale, and sustainable multi-channel profitability using Google Performance Max, Shopping asset isolation, and Meta Full-Funnel TOFU-MOFU-BOFU audience remarketing.

D2C Health, Nutrition & Wellness E-Commerce Growth Case Study

Scaling D2C Supplement Sales to 54.3% Peak Conversion Rates

Nutrabytes (nutrabytes.com) is a leading British manufacturer of pure Hydrolysed Marine Collagen peptides, Biotin formulas, and premium vitamins. We deployed an omni-channel acquisition and retention engine integrating Google Shopping & High-ROAS Search, Meta TOFU → MOFU → BOFU funnels, viral YouTube short-form storytelling, and multi-channel social retargeting that drove consistent sales scaling from 25 items/wk to 119 items/wk at an industry-disrupting CPA of £1.05 – £2.81 per item sold.

D2C Health, Nutrition & Collagen Peptides Model: Shopify Direct-to-Consumer & Refills Core Markets: United Kingdom, Europe & Global D2C

Core Growth Mandates

  • High-Converting Search: Target marine collagen, hair growth, and anti-aging search queries with high purchase intent.
  • Audience Funnels: Structure Meta ads into TOFU (Awareness), MOFU (Consideration), and BOFU (Catalog Retargeting).
  • Organic Video Moat: Build an active YouTube Shorts & Reels presence driving organic traffic and consumer trust.
  • Margin & CPA Control: Maintain Cost Per Sale under £3.00, well below industry benchmarks (£15 – £25).
Peak Conversion %
54.3%
Peak Efficiency
Lowest Cost / Sale
£1.05
Avg: £1.30 – £2.81
Weekly Scale Peak
119 Items
4.7x Volume Growth
Meta Weekly Reach
147K+
TOFU Discovery
Facebook Peak Reach
163.9K
291K Impressions
YouTube Unique Viewers
16.8K+
243 Hrs Watch Time
Hero Product Categories

Flagship Nutritional Formulas & SKUs

#1 Bestseller

Hydrolysed Marine Collagen

Liquid & Powder Formulations

Pure Naticol® Marine Collagen peptides engineered for skin hydration, wrinkle reduction, hair thickness, and joint mobility. High repeat re-order rate.

High Intent Target 54.3% Conv. Peak
Beauty & Hair

Biotin Complex + Zinc & Selenium

Max Strength 10,000 mcg

High-potency hair growth, radiant skin, and strong nail formulation with natural absorption boosters. Targeted heavily on Meta & Google Shopping.

Low CAC Product £1.05 Cost / Sale
Health Essentials

Immunity & Vitamin Formulations

Vitamin C, D3, K2 & Zinc

Clinically balanced daily wellness formulas designed for year-round immune defense and vitality. Delivered a 23.5% ACOS in dedicated campaigns.

ACOS Efficiency £3.20 Cost / Sale
Pure Wellness

Pure Collagen Refill & Subscriptions

Sustainable Refill Packs

Eco-friendly refill subscription packages powering high customer lifetime value (LTV) and recurring revenue through automated email and SMS retargeting.

High Lifetime Value 12.3% BOFU Conv.
Funnel Engineering

Full-Funnel TOFU → MOFU → BOFU Audience Strategy

STAGE 1: TOFU 147K+ Weekly Reach

Brand Discovery & Education

Engaging video shorts and beauty influencer reels introducing Marine Collagen benefits, anti-aging science, and customer transformations to broad UK audiences.

Audience Reach: 147,411/wk
Impressions: 172,929/wk
Cost / 1K Reach: £0.53 – £0.90
STAGE 2: MOFU 1,525 Clicks / Week

Product Evaluation & Traffic

Retargeting video viewers with product comparison carousels, third-party lab certifications, and press features driving high-intent traffic directly into product detail pages (PDP).

Store Traffic: 1,525 Clicks/wk
Click-Through Rate: Up to 5.62%
Cost Per Click: £0.08 – £0.13
STAGE 3: BOFU 12.3% Conversion Rate

Direct Purchase & Refills

Dynamic catalog ads retargeting cart abandoners and bundle discount incentives converting warm traffic into completed orders with industry-leading efficiency.

Conversion Rate: 10.7% – 12.3%
Cost Per Sale: £7.22 – £10.95
Scaled Peak: 48 Orders / Wk (£2.56 CPA)
Meta Paid Advertising Engine

Meta Full-Funnel Audience Scaling & BOFU Sales

Middle of Funnel (MOFU) Traffic Acquisition

Campaign Window Reach Clicks CTR (%) Cost / Click Spend
18 - 24 July 14,008 611 3.01% £0.13 £83.42
25 - 31 July 18,272 1,525 5.62% £0.08 £121.82
1 - 7 Aug 50,855 931 1.79% £0.12 £122.56
8 - 14 Aug 24,578 900 3.67% £0.09 £102.49
15 - 21 Aug 24,776 909 3.92% £0.08 £104.55

Bottom of Funnel (BOFU) Direct Sales Retargeting

Campaign Window Link Clicks Orders / Sales Conv. Rate Cost / Sale Revenue
25 - 31 July 81 10 Orders 12.3% £7.22 £250.00
1 - 7 Aug 112 12 Orders 10.7% £10.95 £453.69
8 - 14 Aug 242 11 Orders 4.5% £12.64 £339.59
15 - 21 Aug 198 10 Orders 4.1% £13.92 £329.66
Nov Scaling 495 48 Orders 9.7% £2.56 £1,240.00
YouTube, Meta, Snapchat & LinkedIn Growth

Omnichannel Video & Social Discovery

YouTube Unique Viewers
16.8K
Weekly Unique Reach
Facebook Peak Reach
163.9K
291K Impressions
Snapchat Monthly Views
14.3K
12.2K Unique Viewers
Post Engagements
13.4K
Peak Engagement Week

Viral Short-Form Video Strategy on YouTube & Reels

By producing high-retention short videos explaining "Why liquid marine collagen absorbs 5x faster than pills" and demonstrating daily supplement routines, YouTube unique viewers scaled from 147 to 16,800+ viewers per week with over 243 hours of organic watch time, building authority in the premium nutritional space.

Executive Summary & Strategic Growth Takeaways

How Nutrabytes scaled D2C e-commerce sales with unmatched efficiency

1. Unprecedented CPA Efficiency

Through high-intent search exact-matching and product page CRO, Google Ads generated sales at £1.05 – £2.81 per item sold, far below industry averages.

2. Full-Funnel Retargeting Flywheel

TOFU awareness fed 147K+ weekly viewers into a low-cost MOFU consideration pool (£0.08 CPC) and converted BOFU retargeting at 10.7% – 12.3% purchase conversion rates.

3. Multi-Channel Video Authority

YouTube Shorts, Meta Reels, and Snapchat video campaigns built deep consumer trust, generating thousands of landing page views and fueling organic repeat subscriptions.

D2C E-Commerce Direction

Scale Your Supplement Brand with Unit-Economics Certainty

Paid Media World engineers deterministic paid acquisition architectures that eliminate search leakage, scale product remarketing, and drive predictable customer acquisition.

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Subhranil Naskar

Founder & Lead Performance Strategist
Kolkata, West Bengal, India

Subhranil is the Founder and Lead Performance Strategist at Paid Media World. With over 10 years of practitioner experience managing high-budget performance marketing infrastructure across Google Ads, Meta Ads (CAPI), and GA4 event attribution, he personally architects and audits deterministic paid media infrastructure, algorithmic portfolio bidding, and enterprise conversion architecture.