Introduction
Optimizing your vitamin D levels is one of the fastest ways to support immunity, mood, bone density, and overall vitality — especially for adults spending most of their day indoors. But not all vitamin D supplements absorb well, and even fewer include vitamin K2, which is critical for directing calcium into the bones instead of the arteries.
Performance Lab D3 + K2 is marketed as a clean, highly bioavailable solution that pairs plant-based vitamin D3 with premium K2 for better absorption and stronger results. But does it truly deliver?
After analyzing the formula, research, dosage, and real-world feedback, this comprehensive review breaks down everything you need to know so you can decide confidently.
Quick Summary Box
| Best For | Immunity, bone strength, mood support, heart health |
| Key Ingredients | Plant-based D3 (Vitashine®), K2 MK-7 (from chickpeas) |
| Dosage | 1000 IU D3 + 50 mcg K2 per capsule |
| Highlights | Clean formula, additive-free, high absorption, vegan |
| Price | Premium but fair for quality |
| Verdict | Excellent for immunity, bones, mood, and heart health. |
What Is Performance Lab D3 + K2?
Performance Lab D3 + K2 is a daily vitamin supplement combining vegan D3 from algae with natural K2 MK-7 from chickpeas. The formula is clean, minimalist, and designed for maximum absorption without fillers, allergens, or synthetic additives.
- 1 Month Supply : $21.75 / SAVE 25%
- 4 Month Supply : $78.88 / SAVE 32%
How Performance Lab D3 + K2 Works
1. Boosts Active Vitamin D Levels
Vitamin D3 is the most absorbable form of vitamin D. Research shows that D3 raises serum levels more effectively than D2
PubMed Study.
2. K2 Directs Calcium to the Right Places
K2 activates osteocalcin and MGP proteins, guiding calcium into bones and away from arteries
NIH Study.
3. Synergistic Heart & Bone Support
Combining D3 + K2 improves bone density and arterial flexibility
ScienceDirect Research.
Performance Lab D3 + K2 Key Ingredients
1. Vitamin D3 (Vitashine®), 1000 IU
A vegan-certified D3 from algae. Supports immunity, mood, and calcium absorption.
Google Scholar Research
2. Vitamin K2 (MK-7), 50 mcg
Natural MK-7 from fermented chickpeas. Known for superior bioavailability and longer half-life
PubMed Research.
Performance Lab D3 + K2 Benefits
- Strengthens bones and teeth
- Improves immunity and resilience
- Boosts mood and reduces winter blues
NIH Study - Supports heart and artery health
- Enhances muscle strength and recovery
- Improves absorption of calcium
- Clean, vegan, and easily absorbed formula
Performance Lab D3 + K2 Pros & Cons
Pros:
- High-quality vegan D3 + natural MK-7
- Clinically researched ingredients
- Clean, minimalist formula
- Excellent for immunity, bones, and mood
- Manufactured to strict quality standards
Cons:
- Premium price
- 1000 IU may be low for severe deficiency
- Only available on official website
- 1 Month Supply : $21.75 / SAVE 25%
- 4 Month Supply : $78.88 / SAVE 32%
Comparison Table with Alternatives
| Feature | Performance Lab D3 + K2 | Sports Research D3 + K2 | NOW Foods Vitamin D3 |
|---|---|---|---|
| D3 Source | Vegan algae | Lanolin | Lanolin |
| K2 Type | MK-7 (natural) | MK-7 | None |
| Clean Formula | Yes | Moderate | Additives included |
| Best For | Immunity, bones, heart health | General wellness | Budget users |
| Price | Premium | Affordable | Cheap |
| Absorption | High | High | Medium |
Customer Reviews
General feedback indicates strong ratings with improvements in mood, immunity, energy, and sleep. Some users find the cost higher than basic D3 products.
Who Should Use Performance Lab D3 + K2?
- Adults 20–65
- People deficient in vitamin D
- Office workers or indoor lifestyle adults
- Vegans or vegetarians
- Anyone seeking immune, bone, or heart support
Who Should Avoid It?
- People on blood thinners (K2 interaction)
- Those with hypercalcemia
- Individuals taking high-dose D3 (ask your doctor)
Side Effects & Safety
Performance Lab D3 + K2 is generally safe. Mild stomach upset is rare. Excessive vitamin D intake may lead to toxicity
NIH Safety Info.
Pricing & Packages
- 1 Month Supply : $21.75 / SAVE 25%
- 4 Month Supply : $78.88 / SAVE 32%
Frequently Asked Questions
1. How long does it take to see results?
Most people notice improvements within 1–3 weeks.
2. Is this D3 vegan?
Yes, it uses algae-based D3.
3. Can I take it with calcium?
Yes, and K2 enhances calcium direction into bones.
4. Is 1000 IU enough?
For general wellness, yes. Severe deficiency may require higher doses (doctor-guided).
5. Does it help with mood?
Vitamin D deficiency is linked to low mood
NIH Study.
6. Is it safe for long-term use?
Yes, it is suitable for daily long-term use.
7. Any medication interactions?
K2 may interact with blood thinners like warfarin.
8. Can athletes use it?
Yes — supports muscle strength and recovery.
9. Best time to take it?
With a meal containing healthy fats.
10. Is it third-party tested?
Performance Lab follows strict manufacturing standards typical of premium supplements.
Final Verdict
Performance Lab D3 + K2 is a premium, clean, and highly bioavailable supplement ideal for anyone wanting stronger immunity, improved mood, better bones, and heart support. One of the best-designed D3 + K2 formulas available today.