An oxidizing agent causes another substance to undergo oxidation while itself being reduced. In practical cleaning discussions, the actual product matters more than the chemistry label.
What this means at your property
A stain-treatment product may use an oxidizing ingredient, but fabrics, dyes and finishes can react differently. A process suitable for one material may alter another. The intended result and material compatibility need to be explained together.
Can a stronger application improve the result?
Do not change concentration or combine products on that assumption. Ask the provider to follow the product label, identify limitations and discuss any appropriate test area before broader treatment of a valuable finish or item.
Related terms
Further reading: OSHA: hazard communication standards and guidance.