BioDynamix Slimvance XP is a premium fat burner, with budget ingredients.
Ultimately we're not getting much more here than 200mg of caffeine and a bundle of irrelevant ingredients that if anything belong in an inflammation supplement, not a fat burner. And they would be in doses about 20-50 times to low for that function.
And yes caffeine can help with weight loss, it's been shown to help suppress appetite whilst dieting and keep energy levels high, but Slimvance contains no more caffeine than some $10 pills so we can't see how they can justify their price tag.
Ok, there is also the grains of paradise, but the studies for that are mixed at best, meaning it isn't one of the better ingredients for weight loss aids all in all. And if if you did want to try it out, you could still save yourself $50 a month by getting that and a caffeine pill.
When we compare Slimvance XP against other weight loss aids in this price bracket, which typically offer 5-9 properly dosed and actually scientifically backed ingredients, it doesn't come close and we cannot recommend Slimvance XP.
Slimvance XP is a core slimming complex produced by BodyDynamix, a brand owned by GNC. Unlike many other weight loss supplements on the market, Slimvance XP claims to be stimulant-free, making it suitable for both men and women looking to lose weight without experiencing jitters or sleep disturbances. According to the product description, Slimvance XP can potentially help individuals lose up to 10 pounds in a span of 16 weeks. However, to understand the effectiveness of Slimvance XP, it is essential to explore the scientific studies conducted on its key ingredients and their impact on weight loss.
Caffeine does raise youre metabolism, and grains of paradise has some albeit sketchy claims around thermogenesis.2.5/5
Again caffeine can add something here, but glucomannan would be more effective.2/5
Some minimal benefits from the caffeine, but 5HTP and glucomannan would be better.
There's more than a coffee's worth in here, so it will definitely give you some energy. Although to get a full 5* you'd need to have b vitamins and vitamin d.
Slimvance XP Propriatory Blend 450mg: Almost none of the ingredients in this blend have anything to do with weight loss, and
those that do are in doses 10s to 100s of times too low.
Moringa Oleifera Leaf Extract, aka horseradish: True it is rich in antioxidants and has anti-inflammatory properties, but there's almost no evidence to support it's use for weight loss. The limited research on moringa's effects on weight loss is limited to animal studies, that evidence suggests it may help with weight management by enhancing fat breakdown and reducing fat accumulation in body tissues. However, more research is needed to determine its effectiveness in humans as most animal studies don't transfer. And you'd need tens of times more than the dose in slimvance xp for it to apply to humans. 
Murraya Koenigii Leaf Extract, aka curry tree leaves: Curry leaves, much the same as moringa are rich in antioxidants, calcium, iron, phosphorus, and magnesium. But, there is almost no evidence to suggest this will do anything for weight loss at all. The only research that is there has been limited to animal studies, and that is one study on obese rats to be exact. This one study has indicated that oral consumption of Murraya Koenigii Leaf Extract significantly reduced body weight gain, but the volume of it that would be required to translate to humans in terms of grams per lb of body weight would be 50 times what is in Slimvance XP. 
Curcuma Longa, aka turmeric: Turmeric contains curcumin, a compound with anti-inflammatory properties and potential weight management benefits. Research suggests that curcumin can aid in reducing fat tissue growth and improving insulin sensitivity, which may contribute to weight loss. So there is actually some argument for this. Although, based on our breakdown of ingredients so far, you can probably guess the issue we're about to have with slimvance xp. There simply isn't enough here as you need at least 500mg it to even impact inflammation and for weight loss around 2000mg. 
Grains of Paradise 150mg: The dosage is within the "effective" range, the problem is that there's a question as to whether grains of paradise are effective at all for weight loss. The claims tend to sit around it helping break down adipose tissue, meaning that you can burn fat faster, but the theory doesn't seem to actually apply to larger studies. 
Caffeine 200mg: Caffeine does work for weight loss, it's been shown in multiple trials and several meta-analysis that caffeine intake can promote weight loss, reduce BMI, and decrease fat mass. There's a few ways in which this works, firstly caffeine can suppress appetite for around 4 hours after consuming. It increases energy making you move more, thus burning more calories, and lastly, it does actually raise your metabolism. Including several studies which showed that every time they doubled the caffeine intake, there was an approximately 22% reduction in weight loss for patients during the trials. 200mg is about 2 coffees worth, so this would likely have some positive effect. [5,6,7]
Slimvance XP is available for purchase through various retailers, including the official GNC website. The price for a 60-capsule container of Slimvance XP is approximately $60. GNC offers an auto-delivery option, which provides a 10% discount and free shipping for recurring orders.
It's worth noting that while Slimvance XP may seem relatively expensive compared to other weight loss supplements on the market, it's important to consider the potential effectiveness and individual results when determining its value for money.
Slimvance XP is generally well-tolerated by most individuals. However, as with any dietary supplement, there is a possibility of experiencing side effects. Some users may experience mild gastrointestinal discomfort, such as nausea or diarrhea, due to the ingredients' natural properties. Of course any side effects of caffeine could be expected, jitters, nervousness, difficulty sleeping etc. If you are pregnant, nursing, have a pre-existing medical condition, or are taking medication, it is advisable to consult with your healthcare professional before using Slimvance XP. Additionally, individuals with known allergies to any of the ingredients should avoid this supplement.
1 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8176035/
2 - https://pubmed.ncbi.nlm.nih.gov/20655993/
3 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6582779/
4 - https://pubmed.ncbi.nlm.nih.gov/23308394/
5 - https://pubmed.ncbi.nlm.nih.gov/30335479/
6 - https://pubmed.ncbi.nlm.nih.gov/16076989/
7 - https://pubmed.ncbi.nlm.nih.gov/26554757/