diff --git a/phlex/core/CMakeLists.txt b/phlex/core/CMakeLists.txt
index 36fd293a..38b017a8 100644
--- a/phlex/core/CMakeLists.txt
+++ b/phlex/core/CMakeLists.txt
@@ -21,7 +21,6 @@ cet_make_library(
   filter.cpp
   framework_graph.cpp
   glue.cpp
-  input_arguments.cpp
   message.cpp
   node_catalog.cpp
   index_router.cpp
diff --git a/phlex/core/input_arguments.cpp b/phlex/core/input_arguments.cpp
deleted file mode 100644
index d8d86011..00000000
--- a/phlex/core/input_arguments.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-#include "phlex/core/input_arguments.hpp"
-
-#include "fmt/format.h"
-
-#include <algorithm>
-#include <set>
-#include <stdexcept>
-#include <vector>
-
-namespace phlex::experimental::detail {
-  void verify_no_duplicate_input_products(std::string const& algorithm_name,
-                                          product_queries to_sort)
-  {
-    std::sort(begin(to_sort), end(to_sort));
-    std::set unique_and_sorted(begin(to_sort), end(to_sort));
-    product_queries duplicates;
-    std::set_difference(begin(to_sort),
-                        end(to_sort),
-                        begin(unique_and_sorted),
-                        end(unique_and_sorted),
-                        std::back_inserter(duplicates));
-    if (empty(duplicates)) {
-      return;
-    }
-
-    std::string error =
-      fmt::format("Algorithm '{}' uses the following products more than once:\n", algorithm_name);
-    for (auto const& label : duplicates) {
-      error += fmt::format(" - '{}'\n", label.to_string());
-    }
-    throw std::runtime_error(error);
-  }
-}
diff --git a/phlex/core/input_arguments.hpp b/phlex/core/input_arguments.hpp
index c2286787..774fd9d8 100644
--- a/phlex/core/input_arguments.hpp
+++ b/phlex/core/input_arguments.hpp
@@ -55,21 +55,15 @@ namespace phlex::experimental {
     return std::make_tuple(retriever<std::tuple_element_t<Is, InputTypes>>{args[Is]}...);
   }
 
-  namespace detail {
-    void verify_no_duplicate_input_products(std::string const& algorithm_name,
-                                            product_queries to_sort);
-  }
-
   template <typename InputTypes>
-  auto form_input_arguments(std::string const& algorithm_name, product_queries const& args)
+  auto form_input_arguments(product_queries const& args)
   {
     constexpr auto num_inputs = std::tuple_size_v<InputTypes>;
-    detail::verify_no_duplicate_input_products(algorithm_name, args);
     return form_input_arguments_impl<InputTypes>(args, std::make_index_sequence<num_inputs>{});
   }
 
   template <typename InputTypes>
-  using input_retriever_types = decltype(form_input_arguments<InputTypes>({}, {}));
+  using input_retriever_types = decltype(form_input_arguments<InputTypes>({}));
 }
 
 #endif // PHLEX_CORE_INPUT_ARGUMENTS_HPP
diff --git a/phlex/core/products_consumer.hpp b/phlex/core/products_consumer.hpp
index c6ae79c0..a88e7e7f 100644
--- a/phlex/core/products_consumer.hpp
+++ b/phlex/core/products_consumer.hpp
@@ -37,7 +37,7 @@ namespace phlex::experimental {
     template <typename InputParameterTuple>
     auto input_arguments()
     {
-      return form_input_arguments<InputParameterTuple>(full_name(), input_products_);
+      return form_input_arguments<InputParameterTuple>(input_products_);
     }
 
   private: