https://www.realdoll.com/knowledgebase/can-i-use-my-doll-or-realdoll-accessory-item-without-lubricant/
Realdoll | Can I Use My Doll Without Lubricant?
For your pleasure and for best maintenance of your silicone love toy, you should always use plenty of lubricant.
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https://www.kinkly.com/products/trojan-enz-without-lubricant-condoms
Trojan ENZ without Lubricant Condoms | Choose Your Own Lube! – Kinkly Shop
Sensitive to lube ingredients? These Trojan ENZ condoms are entirely unlubricated; provide your own lube or go without.
trojan enzwithout lubricant