With SPF 20 you get a medium protection against the suns UVA and UVB rays and is recommended to you who have a light or light brown skin; skin type 3-4. Read more about skin types here.
We always recommend using a high protection for children, SPF 30 and SPF 50+
SPF 20 is available in a clear lotion in 100 ml & or 200 ml packs.
Note: This is a general guideline as everyone's skin is different. You should determine your own skin's tanning ability. Use common sense and try appropriate products for brief periods of time in the sun to avoid over exposure and/or sunburn.