Great question—but there isn’t one single “ideal” herb-based protein supplement combo. It depends on your goal (muscle gain vs. general protein intake), digestion tolerance, and what you mean by “herb” (some “herbal” blends include protein sources that are actually seeds/legumes/grains rather than medicinal herbs).

That said, the most effective plant protein combinations are usually complementary amino-acid profiles:

Best-performing common combo (for complete amino acids)

Pea protein + Rice protein

• Why it works: Pea is typically higher in lysine; rice is typically higher in methionine—together they approach a more “complete” profile.
• Easy to find: Many blends already combine them in roughly complementary ratios.

If you want a more “natural whole-food” feel

Pea protein + Sprouted brown rice protein

• Sprouted options may be easier to digest for some people and can be less “gritty.”
• Still generally pairs well amino-acid-wise.

For extra variety (and sometimes better tolerance)

Pea protein + Pumpkin seed protein

• Pumpkin seed adds magnesium and fats, and can help diversify the amino-acid mix.
• Not always as complete as rice-pea, but can be useful depending on the product.

If you’re specifically avoiding legumes (or they upset your stomach)

Rice protein + Hemp protein

• Hemp provides a fairly good amino acid profile for a single plant protein, and can be gentler for some people.
• Still, pea+rice is usually the most “complete bang for buck.”

Practical “ideal” strategy (simple rules)

1. Use a 2-protein blend for amino-acid completeness: pea + rice is the classic.
2. Aim for total daily protein more than any one “perfect” ingredient:
   • Typical general target: ~1.2–1.6 g/kg/day for many active adults (higher for some athletes under guidance).
3. Check leucine content (important for muscle protein synthesis). If a supplement lists leucine grams per serving, that can guide you.

Two quick questions so I can recommend the best specific combo for you

1. What’s your goal: muscle gain, weight loss/meal replacement, or general health?
2. When you say “herb,” do you mean true herbs (like ashwagandha/moringa) or do you mean plant-based protein (pea/rice/hemp/etc.)?

If you tell me those + any dietary preferences (vegan? gluten-free?) and digestion issues, I can suggest the best combination and what to look for on the label.