There's an overwhelming assortment of hair system products. I bought a lot of products to experiment when I first started wearing 8 months ago. A lot of them I don't use it anymore. Now I'm only using few products and they can last for months.
Products I use:
USD$
$2
91% Isopropyl alcohol
$6
Got2B gel
$5
1522 Clear Adhesive Tape 36 Pieces
$13
Remy Hair Silk Mist Leave-in Conditioner
$15
Silicon mix hair treatment conditioner and shampoo
$19
Esha Absolute glue (I only use this glue on the hairline for swimming or camping trip)
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Products I don't use anymore:
Walker Lace Front Tape (I will only use this on skydiving or scuba-diving)
Walker Positioning Spray (same as using 91% Isopropyl alcohol)
Ultra Hold Mini Tabs (1522 tape is much better for me)
Walker Lace Release (same as using 91% Isopropyl alcohol)
Walker Scalp Protector (I don't feel any benefit of using this)
C-22 Citrus Solvent (same as using 91% Isopropyl alcohol)
Ultro hold adhesive (I will only use this on skydiving or scuba-diving)
10 miracle leave in conditioner (Remy Conditioner is much cheaper)
Walker Knot sealer (I bought it but never use it)
Walker positioning spray (same as using 91% Isopropyl alcohol)
Caudalie Vinotherapie Divine Oil (good product but I think Remy Hair Silk Mist is good enough)