When a brand sends free products to an influencer without requiring a post, this is "gifting." If the influencer chooses to post, they must still disclose the gift with "#gifted" or "#gift" — the ASA requires disclosure wherever the brand has provided any material benefit, even if there was no posting obligation.
Legal reference: ASA CAP Code r.2.1, r.2.4; CMA Consumer Protection from Unfair Trading Regulations 2008