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Stress support; Adrenal support; Nervous system support; Sleep quality
Adults with busy, high-stress lifestyles or those seeking simple daily support for stress resilience.
Take 1 capsule once daily with water about 15 minutes before a meal; taking earlier in the day may suit those sensitive to nighttime stimulation.
Non-GMO; Suitable for vegetarians; Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients; Produced in a GMP facility that processes these allergens.
Phosphoserine supplies a phosphorylated form of serine that may influence stress-related signaling and adrenal hormone regulation through phospholipid and neurotransmitter pathways.
Caution: May cause digestive upset in some people; take with water and follow label directions.
L-Serine is a nonessential amino acid used to build proteins and phospholipids, which may support neurotransmitter balance during stress.
Caution: Amino acids can interact with certain diets or supplements; avoid excessive intake beyond the label.
Magnesium serves as a cofactor in hundreds of enzymes and may help regulate nervous system relaxation and stress response.
Caution: May cause loose stools in sensitive individuals; taking with food can improve tolerance.
Calcium supports cell signaling and nerve transmission, which may contribute to a balanced stress response.
Caution: High total calcium from diet and supplements may not be needed for everyone; consider overall daily intake.
Phosphorus is part of ATP and phospholipids, supporting cellular energy and membrane function relevant to stress adaptation.
Caution: Those limiting phosphorus intake due to specific dietary needs should consider total daily phosphorus from all sources.
Phosphoserine and L-serine provide building blocks and phosphorylated substrates that can influence phospholipid and neurotransmitter pathways related to stress. Magnesium, calcium, and phosphorus supply key minerals for nerve signaling, enzyme function, and cellular energy, complementing the serine components for balanced stress response.
Label Warning: If pregnant or nursing, consult a physician before use.
Who should be cautious: People with kidney issues or on medications affected by minerals may want to discuss calcium, magnesium, and phosphorus content with a healthcare provider before use.
Storage: Store in a cool, dry place or refrigerate.
Many users mention feeling more relaxed at night and experiencing improved sleep quality.
Reviewers often note less nighttime anxiety and an easier time winding down.
A few users report no noticeable effects or say some capsules did not dissolve well.
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
Magnesium supports muscle relaxation, nervous system function, and stress modulation. Paired with adaptogens, it may enhance resilience to occasional stress and promote a calm, steady energy.
AI generated. Not medical advice.
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The original formulation of our most popular supplement. Seriphos™ provides superior adrenal support and is intended to help maintain a healthy response to stress. The benefits of being less stressed often include a better and more restful night's sleep and improved overall quality of life.
Take 1 capsule daily with water 15 minutes before a meal or as directed by your physician.
Magnesium stearate (palm vegetable), cellulose, vegetarian capsule shell (hypromellose, water).
Allergen Information: Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Manufactured in the USA in a GMP compliant facility.
If pregnant or nursing, consult your physician before using this or any other product.
Keep out of reach of children.
Store in a cool, dry place or refrigerate.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: 1 Capsule | ||
| Servings Per Container: 100 | ||
| Amount Per Serving | % DV | |
| Calcium (as phosphate, ethylamino-phosphate) | 56 mg | 6% |
| Magnesium (as oxide, phosphate, ethylamino-phosphate) | 66 mg | 16% |
| Phosphorus (as phosphate) | 210 mg | 17% |
| Proprietary Blend Sodium phosphate, dicalcium phosphate, dipotassium phosphate, magnesium oxide, L-serine, dimagnesium phosphate, magnesium ethylamino-phosphate, calcium ethylamino-phosphate, phosphoserine | 1000 mg | ** |
| **Daily Value (DV) not established. | ||
