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Animal Stak

4.5
★ ★ ★ ★ ★
(6967 ratings)
Zinc 25 mg
Magnesium 425 mg
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Score38
Opaque hormone-oriented blends, weak oxide minerals, and poor value make this difficult to recommend. The disclosed vitamins do not resolve the central uncertainty.
How scoring works
Pack
Quantity:23 Pack(s) • (23 servings)
Goals:
Skin Health
Hair Health
Vision Support

Score 38

Opaque hormone-oriented blends, weak oxide minerals, and poor value make this difficult to recommend. The disclosed vitamins do not resolve the central uncertainty.
How scoring works
$46.44($2.01 per serving)
iHerb
$ 46.51
Nutrition Faktory
$ 46.50
Vitacost
$ 47.47
Amazon
$ 46.44
Vitacost
$ 47.47
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Analysis

Vitamin D3 and vitamin B6 are useful disclosed nutrients, but magnesium oxide and zinc oxide have limited systemic absorption. The substantial mineral amounts do not fully compensate for form quality or long-term tolerance concerns.

Pro-testosterone, growth-hormone, aromatase, hormone-amplifying, and restorative complexes make up most of the formula without individual ingredient doses. Blend names suggest a targeted hormone product, yet the available data cannot show whether those pathways are coherently or safely covered.

The pack is convenient for users who want many ingredients at once, but convenience is not enough when the central formula cannot be audited. Very weak value and limited transparency make a simpler disclosed product easier to evaluate.

Who is it for
  • Experienced adults who can obtain and review the full blend label
  • Users specifically seeking a multi-packet hormone-oriented formula
  • People using it under informed professional guidance
Best for
  • All-in-one pack convenience
  • Basic vitamin D and B6 coverage
  • Users who accept proprietary blends

Pros

  • Includes vitamin D3
  • Discloses total weights for each major complex
  • Combines many components in one pack

Cons

  • Hides most individual ingredients and doses
  • Uses magnesium oxide and zinc oxide
  • Very poor value for the disclosed quality

Warnings

  • The proprietary hormone-oriented complexes prevent reliable screening for interactions or duplicate ingredients.
  • The magnesium amount may cause diarrhea or cramping despite the form having limited absorption.
  • Sustained zinc intake at the listed level may reduce copper absorption.

Nutrient quality

40 Lower impact

Substantial mineral totals provide some nutritional depth. Poorly absorbed oxide forms and several hidden complexes prevent reliable dose and formulation assessment.

Ingredient transparency

28 Situational impact

The vitamin and mineral totals are clear, but several large proprietary complexes dominate the formula. Hidden component doses, incomplete directions, and absent non-active ingredients make transparency poor.

Customer satisfaction

71 High impact

The supplied average is strong and supported by very large response volume. No comment-level evidence is available to assess repeated complaints or alignment with the intended use.

Value for money

16 Limited impact

Substantial minerals and multiple functional categories offer some apparent breadth. Poor forms, hidden doses, and a high serving cost produce weak effective value.

Report analysis

Goals

Skin Health
Skin Health
Impact
Highest effect
A- Goal FitA- Strength of SupportC+ CoverageA Formula Quality
Zinc · 25 mg

Vitamin C directly supports collagen synthesis and antioxidant defense in skin. Vitamin C has established human and mechanistic evidence for collagen formation and antioxidant protection.

The clearly disclosed 1,000 mg vitamin C amount provides more than enough collagen-synthesis cofactor for most users. Vitamin C covers collagen synthesis and antioxidant defense but not direct hydration or barrier-lipid support.

Hair Health
Hair Health
Impact
High effect
C+ Goal FitB Strength of SupportC- CoverageC Formula Quality
Vitamin D · 25 mcgZinc · 25 mg

Zinc supports follicle function and may help when low zinc status contributes to shedding. Routine high intake is unlikely to improve hair when zinc status is adequate.

Zinc oxide provides a clearly disclosed 25 mg amount. Long-term use at this amount without copper may contribute to copper depletion in susceptible users.

Study evidence
Zinc Supportive 22 studies
Vision Support
Vision Support
Impact
High effect
B- Goal FitB- Strength of SupportD- CoverageB- Formula Quality
Zinc · 25 mg

Zinc supports retinal enzyme activity and vitamin A transport, giving it a clear role in ocular nutrition. The disclosed amount is substantial and can contribute to a broader vision regimen.

Zinc alone does not recreate the balanced combinations used in established vision formulas. Higher daily amounts also need attention to copper intake because prolonged use can reduce copper absorption.

Study evidence
Zinc Supportive 39 studies

Ingredients

IngredientAmount per serving
Vitamin D (Cholecalciferol)
 25 mcg
Vitamin B6 (Pyridoxine Hydrochloride)
 10.5 mg
Magnesium (Magnesium Oxide)
 425 mg
Zinc (Zinc Oxide)
 25 mg
Pro Testosterone Complex
1500 mg
Growth Hormone Support
1500 mg
Aromatase Combating Complex
300 mg
Hormone Amplifying Blend (AstaPure)
 500 mg
Restorative Support Complex
500 mg
Adults 18–50 Women
Report overview
Zinc (Zinc Oxide) · 25 mg OverallScore55
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyF Value

Zinc oxide is a poorly absorbed form that may be harder on the stomach, and the pack format does not clarify delivery quality. The 25 mg dose is effective and carries a relatively low copper-depletion risk at this level. A very high per-serving cost makes the value weak for a basic zinc form.

View ingredientView products
Magnesium (Magnesium Oxide) · 425 mg OverallScore45
F Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

Magnesium oxide has low systemic absorption despite the substantial dose. The 425 mg elemental amount sits just above the preferred therapeutic range. Vitamin B6 and vitamin D support the formula logic, but the very high serving cost is poor value for oxide.

View ingredientView products
Loading alternative details
91 Performance

Krebs Magnesium Potassium Complex

Nature's Way
Magnesium lysinate and malate provide favorable forms at a useful 250 mg amount, with a modest potassium contribution. The higher-quality, fully identified form is easier to assess than the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
88 Performance

Magnesium Bisglycinate Powder

NOW
Magnesium bisglycinate offers strong absorption potential in an adjustable powder with a practical 250 mg amount. The higher-quality, fully identified form is easier to assess than the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
87 Performance

Zinc Picolinate 22 mg

Solgar
Zinc picolinate provides strong absorption potential at a measured 22 mg amount rather than an aggressive dose. The higher-quality, fully identified form is easier to assess than the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
84 Budget

Zinc Gluconate 30 mg

Swanson
Clearly labeled zinc gluconate provides a substantial zinc amount at exceptionally low serving cost. The lower serving cost improves value over the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
85 Budget

Zinc 30 mg

Nature Made
A focused zinc gluconate tablet provides meaningful zinc support at exceptionally low serving cost. The lower serving cost improves value over the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
83 Budget

Magnesium Citrate Pure Powder

Best Naturals
Adjustable magnesium citrate powder supplies a practical 210 mg amount at exceptionally low serving cost. The lower serving cost improves value over the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
85 Value

Magnesium Bisglycinate Chelate

Healthy Origins
TRAACS magnesium bisglycinate combines a well-defined chelated form with a practical 200 mg amount and strong routine value. The combination of active quality and modest serving cost is better balanced than the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
87 Value

Zinc Picolinate 25 mg

Thompson
Zinc picolinate provides a well-absorbed form at a meaningful 25 mg amount and strong serving value. The combination of active quality and modest serving cost is better balanced than the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
85 Value

Chelated Zinc 30 mg

Swanson
TRAACS zinc glycinate gives a clearly named chelated form at a substantial 30 mg amount with strong serving value. The combination of active quality and modest serving cost is better balanced than the original oxide-based minerals and large proprietary complexes. It does not reproduce the broad pack, but the disclosed form and amount make the active easier to judge.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Diagnosis of magnesium-induced diarrhea.
    Fine KD; Santa Ana CA; Fordtran JS · The New England journal of medicine · 1991
    Clinical trial19 participantsDigestive Health forMagnesium
  2. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  3. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
    Randomized trialHair Health forZinc
  4. A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
    Randomized trial40 participantsHair Health forZinc
  5. BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  6. Analysis of serum zinc and copper concentrations in hair loss.
    Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
    Case-control study342 participantsHair Health forZinc
  7. Antioxidant vitamin and mineral supplements for age-related macular degeneration.
    Evans JR · The Cochrane database of systematic reviews · 2002
    Systematic review170 participants7 studies pooledVision Support forZinc
  8. Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration.
    Evans JR; Lawrenson JG · The Cochrane database of systematic reviews · 2023
    Meta-analysis3,790 participants5 studies pooledVision Support forZinc
  9. Oral zinc in macular degeneration.
    Newsome DA; Swartz M; Leone NC; Elston RC; Miller E · Archives of ophthalmology (Chicago, Ill. : 1960) · 1988
    Randomized trial151 participantsVision Support forZinc
  10. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8.
    Age-Related Eye Disease Study Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2001
    Randomized trial3,640 participantsVision Support forZinc
  11. Effect of vitamin A and zinc supplementation on the nutriture of children in Northeast Thailand.
    Udomkesmalee E; Dhanamitta S; Sirisinha S; Charoenkiatkul S; Tuntipopipat S; Banjong O; Rojroongwasinkul N; Kramer TR; Smith JC · The American journal of clinical nutrition · 1992
    Randomized trial133 participantsVision Support forZinc