On the panel
Folate — 442 mcg DFE
Named after a leaf, and needed wherever tissue is being built quickly.
What It Is
Folate takes its name from folium, Latin for leaf, which is a fair description of where it was first isolated and where it is still most abundant. Folate is the naturally occurring form; folic acid is the synthetic form used in fortification and most supplements, and it is more stable and better absorbed.
The unit on our label, mcg DFE, stands for dietary folate equivalents. It exists precisely because those two forms absorb at different rates, and it is a way of comparing like with like.
What It Actually Does
Three jobs, described without the marketing vocabulary.
It carries the carbon that writes DNA
Folate's entire job is to pick up single carbon atoms and deliver them where needed, and two of those destinations are thymidine and the purines — the actual letters DNA is written in. A cell preparing to divide cannot finish copying its genome without them.
Fast tissue notices first
Any tissue dividing rapidly feels a folate shortfall before slower tissues register anything. Bone marrow is the classic example, which is why deficiency shows as anaemia, and the basal layer of your epidermis is in the same category.
It is one system with B12
Folate is regenerated into its usable form by an enzyme requiring vitamin B12. If B12 is missing, folate becomes trapped in an unusable state no matter how much you consume, which is why these two are effectively a single system.
442 mcg DFE In Every Serving
Our serving carries 442 mcg DFE against an adult requirement of roughly 400 mcg DFE a day, so this is a full daily contribution rather than a token gesture. It sits comfortably inside the 1000 mcg ceiling that applies to synthetic folic acid.
Folate's job is to carry single carbon atoms and hand them over where they are needed, and two of those destinations are thymidine and the purines, which are the letters DNA is written in. The basal layer of your epidermis divides about as hard as any tissue you own, so it notices a folate gap early.
Who Tends To Fall Short
Deficiency shows first in the blood as megaloblastic anaemia: red cells that are large, immature and too few, because the marrow could not finish dividing. Fatigue, breathlessness, mouth ulcers and a sore, smooth tongue follow.
Risk is higher in pregnancy, where requirements rise sharply, in heavy drinkers, because alcohol interferes with folate metabolism directly, and in anyone taking methotrexate, sulfasalazine or certain anticonvulsants, all of which act on folate pathways.
Where It Turns Up In Food
| Source | Roughly | Notes |
|---|---|---|
| Cooked lentils | ~179 mcg per half cup | The single best everyday source |
| Chickpeas | ~141 mcg per half cup | Nearly as good and easier to keep in a tin |
| Asparagus | ~134 mcg per half cup | Seasonal and dense |
| Cooked spinach | ~131 mcg per half cup | Where the name came from |
| Avocado | ~59 mcg each | Modest, popular |
| Fortified cereal | Up to 400 mcg a serving | Fortification does most of the population's work |
The Ceiling, And The Cautions
The 1000 mcg upper limit applies to synthetic folic acid from supplements and fortified foods, not to folate occurring in ordinary food, which has no established ceiling.
Masking is the caution that matters. High folate intake can correct the anaemia of a vitamin B12 deficiency while neurological damage continues silently underneath, and nerve damage from untreated B12 deficiency can become permanent. That is the specific reason this panel carries both, and the reason anybody with tingling, numbness or unsteadiness should have B12 measured rather than supplemented blindly.
If you take methotrexate, do not add a folate supplement without involving your prescriber. The interaction there is deliberate and part of how the drug is managed.
Where This Comes From
- Folate donates one-carbon units for thymidylate and purine synthesis.
- DFE exists because folic acid is roughly 1.7 times more bioavailable than food folate.
- Folate can normalise the haematological picture of B12 deficiency without addressing the neurological one.
General nutritional science rather than claims about this product. Nothing on this page is medical advice; see our disclaimer.
Folate Questions
What we get asked about this line of the label specifically.
What does mcg DFE mean?
Dietary folate equivalents. Food folate and synthetic folic acid absorb at different rates, so DFE is the conversion that lets both be compared on one scale.
Is this enough for pregnancy?
Pregnancy has specific folate requirements and specific timing, and it is a conversation for your doctor rather than for a skin supplement — particularly here, because this panel also carries 630 mcg of vitamin A.
Does folate help hair?
Indirectly, by supporting the cell division follicles depend on. Nobody should expect folate alone to change hair in someone who was never short of it.
Should I worry about masking B12?
It is worth understanding, which is why we explain it. This panel carries B12 alongside the folate specifically so the two move together.