To repair a small scratches just apply a small amount of the required oil onto the damaged area, then rub with a cloth or scotch pad and leaving for a minute before wiping with a dry cloth.
If you have a deeper scratch or scratches cordon off the damaged part of wood then using sand paper remove the bulk of the scratch or scratches and finish with 120 grit sand paper.
Once sanded re-apply Polyx-Oil but remember to apply two coats as this is recommended when sanding back to the bare wood surface.
When it come to reviving exterior wood it is always best to apply Osmo's Wood Reviver Power Gel following the instructions.
After approximately 48 hours the fresh looking wood can have a finish applyed such as an Osmo Natural Oil Woodstain.