i assume they're hhcg? either way, the newest research discourages mixing with either collidial silver or alcohol. but i think most Homeopathic preparations are made with alcohol (and they work on a different principle, anyway, than pharmacy-grade Drops). i've never heard of "ultra" hhcg. there is "high purity" hcg (pharmacy) that just a few people have tried, and they don't seem to notice any difference.