Supplements & nutraceuticals
Subscription cadence, stack bundling and third-party testing content carry the category more than any promotional lever.
San Diego, CA · West Coast
Shopify Agency in San Diego, CA
San Diego builds science-backed consumables and gear people wear every day. We build the Shopify stores, subscription programs and retention systems that make both compound.
We work with San Diego brands remotely — no local storefront, just the same senior team on your timezone.
The market
What selling online in San Diego actually looks like
San Diego is one of the three major life-science clusters in the United States, and that has a direct downstream effect on consumer commerce. The concentration of research talent, contract labs and formulation expertise around Sorrento Valley and Torrey Pines has produced an unusually dense population of supplement, nutraceutical, functional food and science-forward personal care brands — companies whose differentiation is genuinely technical rather than aesthetic. They tend to sell consumables, run subscriptions, and operate under real regulatory constraints on claims.
The other half of the city's brand economy is the coast. Action sports, surf and skate built a durable manufacturing and design base across Carlsbad, Encinitas and North County that still supplies apparel, hardgoods and accessories brands today. Craft brewing is a serious regional industry. And the border matters commercially: the Tijuana manufacturing corridor gives San Diego brands nearshore production and assembly options that most US metros simply do not have, along with a large bilingual customer base and workforce.
All services · San Diego
How we help San Diego brands sell more
Each page covers how we run that service specifically for San Diego brands — the local context, the constraints, and what we deliver.
Design & Build in San Diego
Custom Shopify and Shopify Plus storefronts designed around your catalogue, built in clean Liquid, and launched with a measured conversion baseline.
Plus & Headless in San Diego
Plus-tier engineering for brands that have outgrown a standard theme: checkout extensions, Shopify Functions, B2B, Markets and headless Hydrogen storefronts.
Migrate to Shopify in San Diego
Move to Shopify with your catalogue, customers, order history and organic traffic intact. Redirect parity is signed off before we touch DNS.
Conversion Optimisation in San Diego
A continuous experimentation programme on your Shopify store: research, hypotheses, prioritised tests and every result reported in full, losers included.
eCommerce SEO in San Diego
Technical and content SEO built for Shopify catalogues, plus generative engine optimisation so your products surface inside AI answers.
Google Ads in San Diego
Google Ads for Shopify catalogues: Merchant Center feed health, Shopping and Performance Max structure, brand and non-brand separated, and weekly query mining.
Meta Ads in San Diego
Facebook and Instagram for Shopify brands: Advantage+ and catalogue campaigns, Conversions API signal repair, a creative cadence that outruns fatigue, and geo holdouts to check the claim.
Marketplace Channel in San Diego
Amazon, TikTok Shop and Walmart run as a discovery channel that feeds your Shopify store, with listings, PPC and margin managed together.
Klaviyo Email & SMS in San Diego
Klaviyo built as a retention system: behavioural flows, RFM segmentation, SMS used sparingly, and owned channels pushed toward 25-40% of total revenue.
Creative & Content in San Diego
Static, video and UGC creative produced on a monthly testing calendar, plus the product photography and page content your store and ads run on.
Analytics & Data in San Diego
GA4, server-side tracking, Conversions API and consent mode implemented properly, plus reporting that ties every channel back to contribution margin.
Apps & Support in San Diego
A named Shopify developer and strategist on a fixed sprint cadence: app stack owned, theme kept clean, ranked backlog shipped every month. The first stabilisation pass typically cancels around $1,840/mo of redundant app spend.
Verticals
Who we build for in San Diego
The categories that dominate San Diego’s commerce economy — and what each one needs from a Shopify build.
Functional food & beverage
Variety-pack subscriptions and shipping-zone rules decide whether a consumable is profitable to ship nationally.
Surf, skate & action sports
Deep variant catalogs, board and gear specs, and drop mechanics need theme engineering built for the category.
Science-forward skincare
Ingredient-led PDPs, routine builders and replenishment flows outperform discount-driven acquisition.
Craft beverage
State shipping restrictions, age gating and club membership mechanics all have to be configured, not assumed.
Districts we work across
Sorrento ValleyNorth ParkLittle ItalyCarlsbadEncinitasLa Jolla
Why us, here
What we do differently for San Diego brands
Compliance-aware conversion work
We build product pages that persuade through ingredient transparency, testing documentation and formulation detail — not through claims your regulatory reviewer will strike.
Subscription programs built to keep people
Skip, swap, delay and prepaid options, plus flows targeted at the second and third renewals where churn actually concentrates.
Bilingual by default
Spanish-language storefront and lifecycle content is straightforward on Shopify Markets and meaningful in a border metro. Most local stores still skip it.
Proof
Results from comparable brands
Client names withheld under NDA. Figures come from their own Shopify Analytics, GA4 and Search Console.
All case studiesPremium Skincare (DTC)
8-figure DTC brand, ~140 SKUs, US + CA · Shopify Plus (migrated from Magento 2)
Magento 2 cost $9k a month in hosting, extensions and emergency dev before a single feature shipped. Mobile LCP sat at 5.4 seconds and mobile converted at less than half the desktop rate across 68% of sessions. The named constraint: 11,412 indexed URLs and a top-3 organic position on their hero category, so a migration that lost rankings would cost more than the platform ever saved.
+41%mobile conversion rate1.62% to 2.28% over the first 90 days post-launch
5.4s → 1.8smobile LCP75th-percentile CrUX field data, not lab
+27%organic sessionssix months post-migration vs. pre-migration baseline, branded queries excluded
$108k/yrplatform cost removedhosting, extension licences and the standing emergency dev retainer
Performance Apparel (DTC)
~$6M/yr DTC, 900+ SKUs across size and colour variants, US · Shopify Plus
Returns ran at 31% and refund cost consumed the entire paid media margin. One size chart image served 40 different fits, and 62% of add-to-carts started on a collection page that never showed variant availability. The named constraint: no new product photography budget, so every fix had to come out of the existing asset library and the review corpus.
+29%sitewide conversion rate1.71% to 2.21%, five-month average
+14%average order value$84 to $96 once the threshold bar and cross-sell shipped
31% → 22%return ratenine-point drop, roughly $310k/yr in recovered margin
1.9x → 2.4xblended MERwith paid spend held flat throughout
FAQ
Working with us from San Diego
No. ConversionEX is headquartered in Albuquerque, New Mexico and works with San Diego brands remotely, traveling on-site for kickoffs and quarterly planning. We are one hour ahead, so our day covers yours.
By moving the persuasion to evidence you can publish: full ingredient disclosure with dosages, third-party test results, sourcing detail, formulation rationale and honest customer experience. Structured, transparent product pages consistently outperform vague benefit language in this category anyway — and they survive review.
Shopify's native subscriptions are simpler, cheaper and well integrated for straightforward replenishment. Recharge earns its cost when you need prepaid plans, complex bundling, gifting or heavy customer-portal customization — which many supplement stacks do. We audit the requirement before recommending, because migrating an active subscriber base later is genuinely painful.
Yes, through Shopify Markets with translation applied at the theme level so navigation, filters, cart, checkout and transactional email all follow. We localize Klaviyo flows too. Half-translated stores convert worse than English-only ones because they signal carelessness at exactly the wrong moment.
A fixed-fee audit producing a prioritized roadmap, then the highest-impact fixes shipped in the first weeks while longer build work is scoped. If you have the traffic for it, a formal test program starts inside the first month. You get a monthly readout with the hypotheses and the results, including the tests that lost.
Nearby
Other markets close to San Diego
California · CA
Riverside
Other cities' brands sell the inventory. Out here, it is actually in the building. We build Shopify stores for the businesses that own the pallets, the catalogue and the wholesale accounts.
California · CALos Angeles
LA brands launch fast and scale on attention. We build Shopify stores that survive a traffic spike, convert the people it brings, and keep them past the second order.
Nevada · NVLas Vegas
Las Vegas commerce runs on two clocks: the trade show calendar and a floor that never closes. We build Shopify stores that work as a wholesale line sheet and a retail storefront at the same time.
Next step
Let’s talk about your San Diego store.
Thirty minutes with the strategist who would actually run your account. We screen-share your store, read your data live, and tell you the three highest-value things we can see from the outside.
Shopify or Shopify Plus stores doing $150k/mo or moreFounder, CEO or eCommerce lead on the callNo deck and no pitch — we open your store instead
Prefer to write it out? [email protected] gets a real reply the same business day, Mon-Fri, 9am-6pm MT.