Gentle Iron 20mg 90 Vegi Capsules vs Advance 25mg 30 Capsules
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Gentle Iron 20mg 90 Vegi Capsules and Advance 25mg 30 Capsules.
Last verified: 07 Apr 2026 · Based on 66 reviews
Gentle Iron 20mg 90 Vegi Capsules scores 77.0/100 vs Advance 25mg 30 Capsules at 70.0/100. Gentle Iron 20mg 90 Vegi Capsules wins on ingredient quality, side effects, certifications. Advance 25mg 30 Capsules is stronger on effectiveness and value for money.
Which is better: Gentle Iron 20mg 90 Vegi Capsules or Advance 25mg 30 Capsules?
Solgar Gentle Iron wins with a score of 77 vs 70, backed by far more user evidence and costing £7.35 less. Active Iron suits those who need a higher 25mg dose and can tolerate the premium price.
— AIScored Editorial Team
How Do the Scores Compare?
Gentle Iron 20mg 90 Vegi Capsules
Solgar
|
Advance 25mg 30 Capsules
Active Iron
|
|
|---|---|---|
| Overall Score | 77.0 | 70.0 |
| Effectiveness | 76.0/100 |
80.0/100
Best
|
| Ingredient Quality |
86.0/100
Best
|
70.0/100 |
| Value for Money | 66.0/100 |
70.0/100
Best
|
| Side Effects |
91.0/100
Best
|
90.0/100 |
| Certifications |
60.0/100
Best
|
40.0/100 |
| Best Price |
£12.64
Amazon UK →
Cheapest
|
£19.99 Holland & Barrett → |
| Form | capsule | None |
| Dose | None | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 62 | 4 |
Gentle Iron 20mg 90 Vegi Capsules
Pros
- ✓Iron bisglycinate is among the most stomach-gentle and bioavailable forms of iron available
- ✓Overwhelming reviewer consensus: no constipation, nausea, or digestive discomfort
- ✓Effective at raising ferritin and haemoglobin levels, with multiple users citing confirmed blood test improvements
- ✓Well-tolerated by sensitive groups including pregnant women and those with IBS or autoimmune conditions
Cons
- ✗20mg single daily dose may be insufficient for correcting significant iron deficiency without medical guidance to increase dosage
- ✗No confirmed third-party purity or potency testing (e.g. NSF, Informed Sport)
- ✗Premium Solgar pricing makes it considerably more expensive than generic iron supplements
- ✗Rare but present reports of GI discomfort, indicating bisglycinate does not suit every individual
Best For
Advance 25mg 30 Capsules
Pros
- ✓Excellent gastrointestinal tolerability—users report no stomach pain or constipation, unusual for iron supplements
- ✓Well-tolerated on an empty stomach, improving convenience and absorption potential
- ✓Consistently high user satisfaction (100% 5-star reviews, n=4)
- ✓Protein-based delivery system targets DMT-1 absorption pathway, supported by Active Iron brand research
Cons
- ✗Limited review volume (4 reviews) restricts statistical confidence in reported benefits
- ✗Not third-party tested—claims of superior absorption and reduced irritation rely on manufacturer data rather than independent verification
- ✗Proprietary formula lacks transparency on exact protein composition and mechanism
- ✗No vegan formulation; unsuitable for plant-based diets
Best For
What does the data say about Gentle Iron 20mg 90 Ve... vs Advance 25mg 30 Capsules?
Solgar Gentle Iron 20mg 90 Vegi Capsules uses iron bisglycinate to prevent the stomach pain often linked to standard tablets. It scores 86/100 for ingredient quality, which is much higher than the 70/100 awarded to Active Iron Advance 25mg 30 Capsules. While Solgar provides a 20mg dose, Active Iron Advance offers 25mg and scores higher for effectiveness at 80/100. Active Iron is specifically made to be taken on an empty stomach. This helps with absorption for people with iron deficiency anemia.
Solgar Gentle Iron 20mg 90 Vegi Capsules is the better overall pick with a score of 77/100. It costs £12.64 for a large bottle. This suits pregnant women or those with heavy periods who need long-term, low-risk support. Active Iron Advance 25mg 30 Capsules costs £19.99 for a much smaller supply. Surprisingly, it wins on value with 70/100 compared to Solgar's 66/100. Active Iron has perfect five-star reviews, though this is based on only four users.
Solgar is a reliable way to raise ferritin and haemoglobin levels. Many users confirm blood test improvements after use. However, the 20mg dose might not be enough for serious deficiencies. Active Iron Advance 25mg 30 Capsules is better if you have a history of side effects from other brands. It causes no constipation or stomach pain. Moreover, the higher effectiveness score suggests it delivers results quickly for those who can afford the higher price point.
Solgar Gentle Iron delivers 20mg of ferrous bisglycinate per capsule, a chelated form of iron widely regarded as among the most bioavailable and stomach-friendly options available.
What are the key differences?
Frequently Asked Questions
Which is better, Gentle Iron 20mg 90 Vegi Capsules or Advance 25mg 30 Capsules? ▼
Is Gentle Iron 20mg 90 Vegi Capsules worth the price compared to Advance 25mg 30 Capsules? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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