Great — here are affordable, “natural” (or naturally‑derived / plant‑forward) men's body‑wash options that are widely available in the U.S., with what makes each one a good pick, rough price ranges, and where to look.

Top affordable natural / naturally‑derived picks

1. Dr. Bronner’s Pure‑Castile Liquid Soap (Peppermint, Unscented, etc.)

• Why: Simple, vegetable‑oil based castile soap (very versatile — can be used as body wash, shampoo, shave soap). Minimal, plant‑based ingredient lists make it a good low‑cost natural option.
• Typical price: ~$8–$16 depending on size (8–32 oz).
• Best for: People who want a multipurpose, very basic plant‑based cleanser; dilute before use if you find it strong.
• Source: explanation of castile soap and its plant‑based makeup. (allrecipes.com)

2. Everyone / EO Products — “Everyone 3‑in‑1” (Men’s scents like Cedar + Citrus)

• Why: Plant extracts + pure essential oils, marketed as synthetic‑fragrance free, EWG/clean claims on many SKUs; large refillable bottles give good value.
• Typical price: ~$11–$25 for large 16–32 oz bottles (Target and other retailers often run sales).
• Best for: Guys who want a naturally scented, all‑in‑one product (shampoo/body/shave) and refill options. (target.com)

3. Every Man Jack (Men’s body wash)

• Why: Brand emphasizes clean ingredients, cruelty‑free and plant‑derived surfactants; affordable drugstore price and often sold in larger refill sizes.
• Typical price: ~$6–$12 for 16–28 oz bottles; refills lower per‑oz cost.
• Best for: Those who want a “clean” men’s line at a supermarket price. (goodhealthacademy.com)

4. Burt’s Bees Body Wash (various scents)

• Why: High percentage of naturally derived ingredients and botanical extracts (many Burt’s Bees cleansers are marketed as mostly natural). Ingredients are generally plant‑derived surfactants and essential oils/extracts.
• Typical price: ~$8–$15 for 12 oz bottles (prices vary by retailer).
• Best for: People who want a recognizable natural brand and fruit/woodsy scents. (knifecenter.com)

5. Nivea Men (naturally‑derived / biodegradable formulas — e.g., Active Clean charcoal, Sensitive)

• Why: Several Nivea Men formulas now advertise “naturally‑derived ingredients,” biodegradable formulas, microplastic‑free, and large value sizes with wide availability and low prices.
• Typical price: ~$4–$10 for 16–31 oz bottles.
• Best for: Budget shoppers who want a men’s‑targeted product with some naturally‑derived claims and big refill bottles. (doordash.com)

6. Method Men’s (Glacier + Granite) — plant‑based, biodegradable

• Why: Plant‑based surfactants and biodegradable formulas; marketed as a budget‑friendly eco option with recognizable scents.
• Typical price: ~$6–$12 per bottle (often sold at Target, drugstores).
• Best for: Those who want a greener mainstream brand with good scent options. (byrdie.com)

7. Aveeno Daily Moisturizing Body Wash (oat‑based)

• Why: Uses colloidal oat / soothing oat extract and is widely recommended for sensitive or dry skin; while not fully “natural,” it uses skin‑soothing, plant‑derived actives and is budget friendly.
• Typical price: ~$6–$10 for 12–18 oz.
• Best for: Sensitive or dry skin that needs gentle, soothing cleansers. (byrdie.com)

Practical tips to save money and get a truly natural result

• Buy larger bottles or refill pouches: Many natural/clean brands offer 32‑oz bottles or refill pouches that drop the per‑ounce cost. (Everyone, Every Man Jack and some Nivea bottles come in large sizes). (target.com)
• Look at the ingredient list: “Natural” isn’t regulated the same way everywhere — look for plant‑derived surfactants (decyl glucoside, coco‑glucoside), aloe/colloidal oats, essential oils, and avoid long synthetic‑fragrance or lots of ambiguous “PEG/PEG‑x” entries if you want minimal processing. Burt’s Bees and EO/Everyone list many plant extracts on their ingredient panels. (knifecenter.com)
• Choose fragrance‑free or unscented if you have sensitive skin. Products marketed for “sensitive” skin or fragrance‑free (Aveeno, some Nivea lines) are usually safer. (heb.com)
• Castile soap dilution: Dr. Bronner’s is concentrated — dilute it (roughly 1:3 to 1:10 water depending on feel) to use as body wash and avoid over‑stripping. (allrecipes.com)

If you want, I can:

• Narrow this list to options specifically for sensitive skin, acne‑prone skin, or very dry skin, or
• Pull exact current prices at a couple of retailers (Target, Amazon, Walmart) for the items you care about.