How to gently say no (MLM.)

My Aunt, who I think the absolute world of- has 2 daughters.

One has been a train wreck her entire life. Full stop. She's leaned hard (read: preyed hard) on her mother financially (who truly cannot afford it), and emotionally for all these years, and it really just drives me nuts. She's the queen of starting go fund me's- and everyone knows her and doesn't donate. My Aunt, and Uncle (divorced) who barely get by themselves are always trying to help save her from homelessness etc when they can. Years ago, I made a firm stand that I would not give, or loan money for her- because it's good money after bad and it solves nothing. When she was younger, she rarely would work, and when she did, she usually had to "tell someone about themselves" and get fired or quit pretty quick. She's been known to steal (from me, too), and she lies like it's nobody's business. Now, she's older, and has alot of (lifestyle related) health issues, and truly cannot work and is on disability but still always has her hand out.

The other cousin. Well. Man, she has the worst luck on the entire planet. If two steps forward and three steps back were a life plan, she'd be the case study. She works sooooo hard. She has kids that she has never ever failed to keep safe even though she's been put through hell. She and her husband just split. It was a long time coming and there was a huge bang catalyst. They were barely keeping their heads above water as it was, there was a disruption in his income, and they were slowly drowning, but hoping when he got back to work they could catch up again. Well, he could no long be in the house. He is not back to work, and she is struggling, not knowing how she's going to get caught back up. She has a plan/hope, but there are too many moving parts, and I am so worried about her and her kids keeping their house and utilities on.

My Aunt has no money right now- none. But she decided to sell (MLM) to try to make some money to help my cousin. I have used the same stuff (not MLM) forever and had no intention of changing it. But, to help out (without sending cash) I decided to place an order. Man. Dumb. I don't like it, and I generally get the stuff I love for less using points/sales at Ulta. I considered offering to send it to her (another state) so she can use it as samples during "parties" but my guy told me that's a bad idea- 1) encourages more "parties" and 2) it's probably not acceptable to use "used product" as samples. But I don't know how that works. I know my house is clean etc.. but I guess it makes sense... sort of like at Ulta or Sephora, you don't put the lotion or foundation directly from the bottle onto your skin, you use a tissue/sponge or whatever. 

Now- she's getting ready for another order and wants to know "what I want." Not, "if I want to order."

I KNOW I should have just said no to begin with- but I really wanted to help my cousin without sending cash directly (because -other cousin.) But truthfully, of my $120 order, my guess is less than $15 gets into my Aunts hands to pass to her. I really regret ordering.

Part of me wants to just tell her this. She knows very well my feelings on the first cousin, and that I want to help second cousin. Part of me wants to support her (I adore her and I know she feels helpless right now to help her daughter.) The other part of me says it's my money and I can give money to whoever I want- optics be damned. The other part of me thinks just place a small order and wait for the MLM thing to eventually blow over.

I know the Pea response is typically No means no, no is a full sentence.. etc... But, my aunt is truly the kindest, most generous, most loving person I have ever met on this Earth. I can't support my cousin, but I would rather hand over cash without the MLM getting a HUGE cut. 

Anyone been here? TIA for any advice!