Sainteks: Jurnal Sain dan Teknik
Vol. 8 No. 01 (2026): Maret

Application of Forecasting and EOQ Methods as an Effort to Control Raw Material Inventory for Implora Lip Cream Products

Ni Luh Putu Hariastuti (Institut Teknologi Adhi Tama Surabaya)
Vegha Swastiana Widyawati (Institut Teknologi Adhi Tama Surabaya)



Article Info

Publish Date
28 Mar 2026

Abstract

The phenomenon of the rapidly growing cosmetics industry in Indonesia aligns with Indonesia's growing population and increasingly diverse needs. Implora Sukses Abadi Company, as a cosmetics company, plays an important role in the growth of this industry through its flagship lip cream. The high consumer demand for lip cream often cannot be met due to limited supply. Therefore, the Company must plan to control inventory by applying forecasting methods to predict the amount of lip cream production in the future period. Quantitative forecasting based on historical data from lip cream production results is used, and inventory control is implemented using the economic order quantity (EOQ) method. Based on the results of this study, the exponential smoothing method was the best forecasting tool, with the smallest MSE of 453,332.6. This is supported by other error value indicators that also achieve the smallest values, such as the MAD and MAPE, at 1,226.364 and 51.613, respectively. The optimal policy for the amount of inventory control costs for each raw material was obtained: PURI of Rp. 858,724,170; raw material CSM22 of Rp. 543,696,239, BORD4 raw materials amounting to Rp. 448,740,905, SBSL raw materials amounting to Rp. 93,913,823, CPR8 raw materials amounting to Rp. 411,278,008, and BTM03 raw materials amounting to Rp. 317,308,683.

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Journal Info

Abbrev

sainteks

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

Description

Sainteks is a scientific journal that publishes research papers encompassing all aspects of natural sciences, technology and engineering. This journal is published 2 (two) times a year (March and September) by the Faculty of Engineering UICM d/h UNBAR. The fields covered by the Sainteks Journal ...