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Best Herbal Supplements (2026)

Ashwagandha, turmeric, and botanical extracts

92 products reviewed and ranked · Updated February 2026

Our #1 Pick

KSM-66 Ashwagandha by NutraHerbals

NutraHerbals · $18-24 · Capsules

"The most clinically studied ashwagandha extract — KSM-66 root-only formula"

If you're going to take ashwagandha, use KSM-66. The clinical evidence is overwhelming — 24+ studies showing benefits for stress, sleep, testosterone, and performance. The 600mg dose in this product matches the protocols used in clinical trials. Just make sure you're getting genuine KSM-66 (look for the logo on the bottle) and give it 4-8 weeks to work.

GMP Certified Non-GMO Gluten-Free Vegan

Full Rankings

#	Product	Price	Amazon	Rating
1	KSM-66 Ashwagandha by NutraHerbals NutraHerbals · Capsules	$18-24	4.5 25,000+	9.0
2	Nutricost KSM-66 Ashwagandha Nutricost · Capsule	$16-20	4.5 38,000+	9.0
3	Jarrow Formulas Curcumin Phytosome 500mg Jarrow Formulas · Capsule	$24-30	4.5 12,000+	8.6
4	Nutricost Ashwagandha KSM-66 Nutricost · Capsule	$16-20	4.6 28,000+	9.0
5	Life Extension Super Ubiquinol CoQ10 200mg Life Extension · Softgel	$36-44	4.7 4,600+	8.8
6	Nutricost KSM-66 Ashwagandha 600mg Nutricost · Capsule	$14-18	4.5 20,000+	8.8
7	Nutricost Berberine HCl 500mg Nutricost · Capsule	$16-22	4.5 15,000+	8.6
8	Ancestral Supplements Grass Fed Beef Liver (180ct) Ancestral Supplements · Capsule	$38-46	4.5 16,000+	8.4
9	Life Extension Super R-Lipoic Acid 240mg (60 Capsules) Life Extension · Capsule	$28-36	4.5 3,800+	8.2
10	Doctor's Best High Absorption CoQ10 200mg with BioPerine (120 Veggie Caps) Doctor's Best · Veggie Capsule	$22-28	4.7 38,400+	9.1
11	Arazo Nutrition Turmeric Curcumin 2250mg Arazo Nutrition · Capsule	$18-24	4.6 40,000+	8.3
12	Sports Research Astaxanthin 12mg Sports Research · Softgel	$22-28	4.6 14,000+	8.7
13	Youtheory Ashwagandha 1000mg Youtheory · Capsule	$14-18	4.5 25,000+	8.6
14	Thorne Meriva Curcumin Phytosome Thorne · Capsule	$36-48	4.5 6,800+	8.6
15	Doctor's Best High Absorption CoQ10 with BioPerine 100mg Doctor's Best · Softgel	$18-24	4.7 32,000+	8.4
16	Life Extension Super Bio-Curcumin 400mg (60 Capsules) Life Extension · Capsule	$22-28	4.6 4,600+	8.2
17	Nutricost N-Acetyl L-Cysteine (NAC) 600mg (180 Capsules) Nutricost · Capsule	$14-18	4.5 14,000+	8.2
18	Doctor's Best High Absorption CoQ10 400mg (60 Veggie Caps) Doctor's Best · Veggie Capsule	$28-36	4.6 6,200+	8.0
19	Spring Valley Turmeric Curcumin 500mg Spring Valley (Walmart) · Capsule	$12-16	4.6 22,000+	6.5
20	NOW Foods Maca Root 750mg NOW Foods · Capsule	$10-14	4.5 20,000+	8.2
21	NOW Foods Milk Thistle 300mg NOW Foods · Capsule	$14-20	4.6 22,000+	8.3
22	Life Extension Curcumin Elite Turmeric Extract Life Extension · Capsule	$22-30	4.6 5,400+	8.4
23	Ancestral Supplements Grass Fed Bovine Colostrum Ancestral Supplements · Capsule	$48-58	4.4 3,200+	7.8
24	Garden of Life Dr. Formulated Brain Health Memory & Focus Garden of Life · Tablet	$28-36	4.2 2,800+	7.6
25	Swanson Berberine 400mg (60 Capsules) Swanson · Capsule	$8-12	4.4 6,800+	7.4
26	NOW Rhodiola Rosea 500mg (60 Veg Capsules) NOW Foods · Veg Capsule	$14-18	4.5 8,200+	8.5
27	Irwin Naturals CBD + Ashwagandha Stress Support Irwin Naturals · Softgel	$24-32	4.3 5,000+	8.4
28	Doctor's Best High Absorption Curcumin Doctor's Best · Capsule	$18-26	4.5 28,000+	8.4
29	NOW Foods Super Cortisol Support (90 Capsules) NOW Foods · Capsule	$16-22	4.4 6,200+	7.6
30	BulkSupplements Glutathione Reduced Powder (100g) BulkSupplements · Powder	$28-36	4.3 4,800+	7.4
31	Ancestral Supplements Grass Fed Beef Tallow Ancestral Supplements · Capsule	$38-48	4.5 1,800+	7.2
32	Nutricost Berberine HCl 500mg (120 Capsules) Nutricost · Capsule	$18-24	4.5 18,200+	8.5
33	Solgar Evening Primrose Oil 1300mg (60 Softgels) Solgar · Softgel	$16-22	4.6 4,800+	7.6
34	Ancestral Supplements Grass Fed Beef Spleen Ancestral Supplements · Capsule	$38-46	4.5 3,200+	7.6
35	NOW Maca Root 750mg (90 Veg Capsules) NOW Foods · Veg Capsule	$10-14	4.5 14,200+	8.3
36	Nutricost KSM-66 Ashwagandha 600mg (90 Capsules) Nutricost · Capsule	$18-24	4.5 18,200+	8.4
37	Swanson Berberine 400mg Swanson · Capsule	$10-14	4.5 12,000+	8.0
38	NOW Foods Oregano Oil Softgels NOW Foods · Softgel	$12-16	4.6 12,000+	8.3
39	NatureWise Curcumin Turmeric 2250mg NatureWise · Capsule	$20-28	4.6 45,000+	8.0
40	Doctor's Best Alpha-Lipoic Acid 600mg Doctor's Best · Capsule	$20-28	4.6 8,800+	8.0
41	NOW Foods Olive Leaf Extract 500mg (120 Capsules) NOW Foods · Capsule	$12-16	4.6 8,800+	7.6
42	NOW CurcuBrain Curcumin Phytosome 500mg (60 Veg Capsules) NOW Foods · Veg Capsule	$28-34	4.5 4,200+	8.5
43	Solaray Berberine 500mg Solaray · Capsule	$16-22	4.5 8,000+	8.1
44	NOW Foods Maca 750mg NOW Foods · Capsule	$10-14	4.5 16,000+	7.8
45	Jarrow Formulas Ubiquinol QH-absorb 200mg Jarrow Formulas · Softgel	$38-48	4.7 5,000+	8.8
46	Youtheory Turmeric Curcumin Youtheory · Tablet	$16-22	4.6 32,000+	7.8
47	Doctor's Best Nattokinase 2000 FU Doctor's Best · Capsule	$16-22	4.6 8,200+	8.0
48	Ancestral Supplements Grass Fed Beef Thymus Ancestral Supplements · Capsule	$42-52	4.5 1,800+	7.0
49	NOW Foods Sunflower Lecithin 1200mg (200 Softgels) NOW Foods · Softgel	$14-18	4.7 14,000+	7.8
50	Thorne Berberine 500mg (60 Capsules) Thorne · Capsule	$28-34	4.5 4,800+	8.9
51	NOW Maca 750mg (90 Veg Capsules) NOW Foods · Veg Capsule	$12-16	4.5 12,200+	8.3
52	Nutricost Maca Root 750mg Nutricost · Capsule	$12-16	4.5 10,000+	7.6
53	BulkSupplements Ashwagandha Extract BulkSupplements · Capsule	$14-20	4.4 18,000+	7.4
54	NOW Foods Boswellia Extract 500mg NOW Foods · Softgel	$14-18	4.5 9,600+	7.6
55	NOW Foods Super Cortisol Support NOW Foods · Capsule	$18-24	4.4 7,400+	7.8
56	NOW Berberine Glucose Support (90 Veg Capsules) NOW Foods · Veg Capsule	$22-28	4.4 4,200+	8.3
57	NOW Foods Rhodiola Rosea 500mg NOW Foods · Capsule	$14-18	4.5 8,000+	8.4
58	Zhou Nutrition Thyroid Support Zhou Nutrition · Capsule	$16-22	4.3 20,000+	7.2
59	Kaged Mindset Nootropic Kaged · Capsule	$32-42	4.4 2,800+	7.8
60	Pure Encapsulations Quercetin 250mg Pure Encapsulations · Capsule	$28-36	4.6 4,800+	7.8
61	Nutricost Ashwagandha Root Extract 600mg Nutricost · Capsule	$14-18	4.5 18,000+	7.6
62	Genius Joy Serotonin Mood Booster The Genius Brand · Capsule	$28-36	4.2 9,800+	7.4
63	NOW Foods Super Cortisol Support with Relora NOW Foods · Capsule	$16-22	4.3 7,400+	7.4
64	Swanson Full Spectrum Lion's Mane Mushroom 500mg Swanson · Capsule	$8-12	4.4 7,800+	7.0
65	Ancestral Supplements Grass Fed Beef Heart Ancestral Supplements · Capsule	$38-46	4.6 5,000+	8.2
66	Life Extension PQQ Caps Life Extension · Capsule	$18-26	4.5 4,200+	7.8
67	Nutricost Saw Palmetto 500mg Nutricost · Capsule	$14-18	4.5 9,200+	7.4
68	Solaray Berberine 500mg (120 Veg Capsules) Solaray · Veg Capsule	$22-28	4.5 8,600+	8.4
69	NOW Foods CurcuBrain Longvida Optimized Curcumin NOW Foods · Capsule	$22-28	4.5 5,000+	8.4
70	Nutricost Lion's Mane Mushroom 500mg Nutricost · Capsule	$18-24	4.5 10,000+	7.8
71	Ancestral Supplements Grass Fed Beef Kidney Ancestral Supplements · Capsule	$38-48	4.5 5,200+	7.6
72	Natrol Cognium Brain Health Natrol · Tablet	$18-26	4.2 5,600+	7.2
73	Swanson Full Spectrum Turmeric Swanson · Capsule	$10-14	4.6 14,000+	7.2
74	Ancestral Supplements Grass Fed Adrenal Ancestral Supplements · Capsule	$44-52	4.5 3,800+	7.4
75	Swanson Ashwagandha KSM-66 600mg (60 Veggie Capsules) Swanson · Veggie Capsule	$12-16	4.5 6,800+	8.5
76	Pure Encapsulations Ashwagandha Pure Encapsulations · Capsule	$24-30	4.6 5,000+	8.8
77	NOW Foods D-Mannose 500mg NOW Foods · Capsule	$18-24	4.5 10,000+	8.4
78	Life Extension Super Ubiquinol CoQ10 100mg Life Extension · Softgel	$32-40	4.7 5,000+	9.0
79	Swanson Full Spectrum Ashwagandha Swanson · Capsule	$6-10	4.5 12,000+	7.0
80	Life Extension NAD+ Cell Regenerator 300mg (30 Capsules) Life Extension · Capsule	$34-42	4.5 6,200+	8.5
81	NOW Foods Phosphatidylserine 100mg NOW Foods · Capsule	$18-24	4.5 5,000+	8.0
82	NOW Foods Astaxanthin 12mg NOW Foods · Softgel	$22-28	4.6 5,000+	8.4
83	Life Extension PQQ Caps 20mg (30 Capsules) Life Extension · Capsule	$22-28	4.5 4,200+	8.3
84	Four Sigmatic Mushroom Coffee with Lion's Mane Four Sigmatic · Powder (Instant)	$14-18	4.3 15,000+	7.6
85	Ancestral Supplements Grass Fed Thyroid Ancestral Supplements · Capsule	$44-52	4.4 3,000+	7.6
86	NOW Foods Berberine Glucose Support NOW Foods · Softgel	$22-28	4.5 8,000+	8.2
87	NOW Foods Super Cortisol Support NOW Foods · Capsule	$18-24	4.3 5,000+	8.0
88	Nutricost KSM-66 Ashwagandha 600mg Nutricost · Capsule	$18-24	4.5 20,000+	8.6
89	NOW Foods Olive Leaf Extract NOW Foods · Capsule	$14-18	4.6 8,000+	7.8
90	Garden of Life Dr. Formulated Brain Health Memory & Focus Garden of Life · Capsule	$32-40	4.3 3,000+	7.4
91	Doctor's Best Serrapeptase Doctor's Best · Capsule	$14-20	4.5 8,000+	7.8
92	Life Extension Bio-Quercetin Life Extension · Capsule	$14-18	4.6 5,000+	8.4

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