Hi Mayra,
Alliance Distributors is not in our directory but they should be safe to deal with.
They have been online for 12 years (safest to deal with suppliers who have been online for at least two years). The address on their hosting company matches with their site thus, dismissing fraudulent concern. Just make sure to use safe payment method (such as credit cards) when purchasing their products. In case anything goes wrong, you can contact your credit card company for chargeback.
Please note however, that we cannot guarantee the safety of any suppliers outside SaleHoo.
If you're interested in their products, you might also want to check verified SaleHoo suppliers:
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Hope this helps.