# Life Extension, D, L-Phenylalanine, 500 mg, 100 Vegetarian Capsules

> Price comparison in United Kingdom (GBP). Lowest price right now: **£11.48** at iHerb GBP, in stock. 2 offers from 2 shops, prices from £11.48 to £20.33. Checked 2026-10-26T15:12:22Z.

## Product
- Brand: Life Extension
- Category: [Health & pharmacy](https://pricuro.com/uk/health-pharmacy.md) > [Vitamins & supplements](https://pricuro.com/uk/health-pharmacy/vitamins-supplements.md)
- EAN/GTIN: 0737870167112
- Page: https://pricuro.com/uk/p/100-vcaps-d-l-phenylalanine-500mg-100-vcaps-3240956
- Image: https://pricuro.com/img/3240956/800/100-vcaps-d-l-phenylalanine-500mg-100-vcaps.webp

## Offers (2, sorted by total price incl. delivery; used/refurbished last)

| # | Shop | Price | Delivery | Total | Availability | Condition | Buy |
|---|---|---|---|---|---|---|---|
| 1 | iHerb GBP | £11.48 | see shop | – | in stock | new | https://pricuro.com/go/147070541 |
| 2 | OnBuy.com | £20.33 | free | £20.33 | in stock | new | https://pricuro.com/go/7144352 |

## Vouchers and offers from these shops

- iHerb GBP: 20% Off Sitewide – code `OCT20SW` (valid until 2026-11-02)
- iHerb GBP: 20% Off Supplements Experts Take Daily – code `OCT26DAILY` (valid until 2026-11-09)
- iHerb GBP: 15% off new customers – code `EU15N` (valid until 2026-12-31)
- iHerb GBP: 20% off Doctor's Best Supplements – code `DRBEST26` (valid until 2027-01-01)
- iHerb GBP: 10% off $60 – code `GOLD60` (valid until 2027-01-01)
- iHerb GBP: 15% off for NEW Customers – code `15NEWC` (valid until 2027-01-01)
- iHerb GBP: 20% off for NEW Customers – code `NEW20` (valid until 2027-01-01)
- iHerb GBP: 15% off Paradise Herbs – code `PARADISE15` (valid until 2028-01-01)
- iHerb GBP: Get 10% off over 50 GBP with the code GOLDGB. – code `GOLDGB` (valid until 2028-09-08)
- iHerb GBP: 15% off First In-App Purchase – code `MYAPP15` (valid until 2031-01-01)

## Price history (lowest price per day in United Kingdom, tracked since 2026-10-03, 23 days)

- Lowest price today: £11.48
- Last 30 days: lowest £11.48, highest £20.33, average £17.48
- All-time low on Pricuro: £11.48 (2026-10-21)

| Date | Lowest price |
|---|---|
| 2026-10-03 | £19.96 |
| 2026-10-04 | £19.96 |
| 2026-10-05 | £19.96 |
| 2026-10-06 | £19.96 |
| 2026-10-07 | £19.96 |
| 2026-10-08 | £19.96 |
| 2026-10-09 | £19.96 |
| 2026-10-10 | £19.96 |
| 2026-10-12 | £19.96 |
| 2026-10-13 | £19.96 |
| 2026-10-15 | £20.33 |
| 2026-10-16 | £20.33 |
| 2026-10-17 | £20.33 |
| 2026-10-18 | £20.33 |
| 2026-10-19 | £20.33 |
| 2026-10-20 | £20.33 |
| 2026-10-21 | £11.48 |
| 2026-10-22 | £11.48 |
| 2026-10-23 | £11.48 |
| 2026-10-24 | £11.48 |
| 2026-10-25 | £11.48 |
| 2026-10-26 | £11.48 |
| 2026-10-27 | £11.48 |

## Specifications


Description (from a shop): Gluten FreeNon GMO LE CertifiedEnhances MoodDietary SupplementWhat Is D, L-Phenylalanine Capsules?Phenylalanine is an essential amino acid, which means your body can’t produce sufficient amounts and requires it from an external source. It’s converted to L-tyrosine in the liver, which is then converted into dopamine, norepinephrine and epinephrine (adrenaline) hormones that can become depleted for a variety of reasons. Replenishing norepinephrine in the brain can support brain health.The neurotransmitters produced from phenylalanine supplementation bring a wide range of cognitive health benefits.D, L-Phenylalanine BenefitsSupports production of L-tyrosine, which is used to make dopamine, nore…

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