Is this Amazon listing optimizer free?

Yes. ListForge is free for everyone, no signup. We rate-limit per IP to keep API costs sustainable.

Will it invent vitamin c serums features I didn't list?

No. The system prompt locks the model to features you provide. It won't claim certifications, materials, or specs you didn't list.

L-ascorbic acid %, pH, and stabilizer blend determine whether the serum works — or turns orange.

Exact vitamin C form (L-ascorbic, THD, SAP) rarely surfaced in title
pH range and concentration % claims are ignored unless you explain why they matter
Dark-bottle / air-pump packaging is a trust signal that goes unmentioned

Pre-loaded for Amazon & Vitamin C Serums. Drop in your raw notes — get a buyer-ready listing in seconds.

Your product

Drop in raw notes — bullet points, half-thoughts, even Chinese / English mixed are fine.

Your optimized listing will appear here.