Please recommend good products for hair loss🙏🏽🙏🏽

F teen. About three months ago, I started noticing my hair was falling out. Unfortunately, I only took action a little over a month ago, I'm replenishing my deficiencies (vitamin D, B9, etc.). I've had thick, porous, long hair my whole life, and it's frustrating to watch so much hair fall out every time I wash it. Please recommend some good products to prevent severe hair loss 😔