Theo Vasquez
The Pack Leader
Veterinary Technician & Shelter Volunteer Coordinator
Dog beds slept on (by the dog, not me). Cat trees stress-tested by actual cats. Food brands compared ingredient by ingredient. Reviewing pet gear for the humans who spoil them.
About Theo
Theo is a certified veterinary technician who also coordinates volunteers at a county animal shelter. He has worked with over a thousand dogs and cats, from puppies to seniors, and knows which products survive real animals versus which ones look good in ads. His food reviews start with the ingredient panel.
Reviews by The Pack Leader
Nutramax Cosequin Joint Health Supplement for Dogs Review
The #1 vet-recommended joint supplement for dogs, with over 78,000 reviews and 25 years of use. Here is what my dogs and the science actually showed.
The Pack Leader Apr 19 
Fresh Step vs Dr. Elsey's Ultra: A Clumping Cat Litter Showdown
Two clumping clays, one two-cat apartment, four weeks of scooping. Charcoal-plus-fragrance against vet-recommended bentonite.
The Pack Leader Apr 18 
Best Dog Owner Starter Kit: Five Products That Earn Their Spot on the Leash Hook
Five dog essentials tested across cold walks, two tick seasons, puppy accidents, muddy returns, and 360 pills. What earns a spot on the leash hook.
The Pack Leader Apr 18 
Best Cat Care Essentials: Litter, Food Toppers, and What Earns a Repeat Order
Three cat staples tested across two house cats: the grocery-aisle clumping litter, the vet's litter-strike fix, and the tubes that earn recall.
The Pack Leader Apr 18 
Amazon Basics Dog Pee Pads Review: The Commodity Pad That Actually Works
A bulk-box basic with pheromone attractant and quick-dry surface. Tested through puppy housebreaking and a senior's rough week.
The Pack Leader Apr 15 
Dr. Elsey's Ultra Unscented Clumping Cat Litter Review: The 40lb Bag Worth the Carry
The 40lb bag that stopped my older cat's litter box strike in two days. Concrete clumps, zero perfume, vet-formulated for picky cats.
The Pack Leader Apr 15 
Earth Rated Dog Poop Bags Review: The Lavender Argument
Four months, 240 bags, one 70-pound lab, and zero leaks. The tear line pulls straight, the sticker warns you at three bags left, and the lavender doesn't lie.
The Pack Leader Apr 15 
Fresh Step Multi-Cat Odor Control Litter Review: The Grocery-Aisle Workhorse
Activated charcoal, clay clumps, and a 14-pound jug that fits in most closets. Fresh Step Multi-Cat, tested in a two-cat apartment across months of scooping.
The Pack Leader Apr 15 
Greenies Pill Pockets Peanut Butter Review: The Daily Medicator's Pick
Six months, 360 pills, zero refusals. Greenies Pill Pockets in peanut butter, capsule size, tested on an 11-year-old lab who knows every trick.
The Pack Leader Apr 15 
INABA Churu Creamy Purée Cat Treats Review: The Tube That Got My Feral Cat to Sit Still
Fifty tubes of lickable tuna-and-chicken purée, 91% moisture, six calories each—tested across two house cats and one semi-feral barn visitor.
The Pack Leader Apr 15 
Seresto Flea & Tick Collar Review (Over 18 lbs): Honest Take on an 8-Month Collar With a Controversial Past
Tested through two Virginia tick seasons on a 70-pound lab, with an honest look at the EPA incident reports that have followed this collar since 2021.
The Pack Leader Apr 15